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Guanidine derivatives quinazoline and quinoline for use in the treatment of autoimmune diseases Number:7,001,904 from the United States Patent and Trademark Office (PTO) owispatent

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Title: Guanidine derivatives quinazoline and quinoline for use in the treatment of autoimmune diseases

Abstract: The invention concerns quinazoline and quinoline derivatives of Formula (I) wherein Q1 includes a quinazoline or quinoline ring optionally substituted with a group such as halogeno, trifluoromethyl and cyano, or a group of the formula: Q3—X1— wherein X1 includes a direct bond and O and Q3 includes aryl, aryl-(1-6C)alkyl, heterocyclyl and heterocyclyl-(1-6C)alkyl; each of R2, R3 and R5 is hydrogen or (1-6C)alkyl, provides that one of the parts of groups R2 and R4 together, R3 and R4 together and R5 and R4 together forms a bond; R6 is an optionally substituted group selected from (2-6C) alkenyl, (2-6C) alkynyl, (3-7C)cycloalkyl and (3-7C) cycloalkenyl, or R6 is a substituted (1-6C) alkyl group; and Q2 includes aryl and aryl-(1-3C)alkyl or a pharmaceutically-acceptable salt thereof; processes for their preparation, pharmaceutical compositions containing them and their use in the manufacture of a medicament for use in the prevention or treatment of T cell mediated diseases or medical conditions in a warm-blooded animal.

Patent Number: 7,001,904 Issued on 02/21/2006 to Poyser


Inventors: Poyser; Jeffrey Philip (Macclesfield, GB)
Assignee: AstraZeneca AB (SE)
Appl. No.: 311587
Filed: June 19, 2001
PCT Filed: June 19, 2001
PCT NO: PCT/GB01/02698
371 Date: December 18, 2002
102(e) Date: December 18, 2002
PCT PUB.NO.: WO02/00644
PCT PUB. Date: January 3, 2002

Foreign Application Priority Data

Jun 24, 2000[GB]0015376
Dec 19, 2000[GB]0030989

Current U.S. Class: 514/234.5; 514/266.2; 514/266.22; 514/266.24; 514/266.4; 544/119; 544/293
Current Intern'l Class: C07D 403/12   (20060101); C07D 413/12   (20060101); A61K 31/50.5  (20060101)
Field of Search: 544/119,293,234.5,266.2,266.22,266.24,266.4


References Cited [Referenced By]

U.S. Patent Documents
5773459Jun., 1998Tang et al.
6806274Oct., 2004Crawley et al.
Foreign Patent Documents
95/15758Jun., 1995WO.
97/03069Jan., 1997WO.
98/38984Sep., 1998WO.
98/50047Nov., 1998WO.
98/50370Nov., 1998WO.
98/52558Nov., 1998WO.
99/09024Feb., 1999WO.
01/04102Jan., 2001WO.


Other References

Casanova et al., PubMed Abstract (Rev Neurol 28(9):909-15), May 1999.
Gibson et al., "Epidermal growth factor receptor tyrosine kinase: structure-activity relationships and antitumour activity of novel quinazolines", Bioorganic & Medicinal Chemistry Letters, vol. 7, No. 21, Nov. 4, 1997, pp. 2723-2728, XP004136520, ISSN: 0960-894X.
Hong et al.; "Synthesis and Billogical Activities of Some N4-Substituted 4-Aminopyrazolo 3,4-d-pyrimidines"; Journal of Medicinal Chemistry, 1976, vol. 19, No. 4, pp. 555-558.
Myers et al.; "The Preparation and SAR of 4-(Anilino), 4-(Phenoxy), and 4-Thiophenoxy)-Quinazolines: Inhibitors of p56 ick and EGF-R Tyrosine Kinase Activity"; Bioorganic & Medicinal Chemistry Letters, 1997, vol. 7, No. 4, pp. 417-420.
van Muijlwijk-Koezen et al.; "Isoquinoline and Quinazoline Urea Analogues as Antagonists for the Human Adenosine A3 Receptor"; J. Med. Chem., 2000, vol. 43, pp. 2227-2238.

Primary Examiner: Rao; Deepak
Attorney, Agent or Firm: Morgan Lewis & Bockius LLP

Claims



The invention claimed is:

1. A quinazoline derivative of the Formula I ##STR15##

wherein Q1 is a quinazoline ring of the formula Ia ##STR16##

wherein:

m is 0, 1, 2, 3 or 4;

each R1 group, which may be the same or different, is selected from halogeno, trifluoromethyl, cyano, isocyano, nitro, hydroxy, mercapto, amino, formyl, carboxy, carbamoyl, (1-6C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, (1-6C)alkoxy, (2-6C)alkenyloxy, (2-6C)alkynyloxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, (3-6C)alkenoylamino, N-(1-6C)alkyl-(3-6C)alkenoylamino, (3-6C)alkynoylamino, N-(1-6C)alkyl-(3-6C)alkynoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino and N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, or from a group of the formula:

Q3—X1


wherein X1 is a direct bond or is selected from O, S, SO, SO2, N(R7), CO, CH(OR7), CON(R7), N(R7)CO, SO2N(R7), N(R7)SO2, OC(R7)2, SC(R7)2 and N(R7)C(R7)2, wherein R7 is hydrogen or (1-6C)alkyl, and Q3 is aryl, aryl-(1-6C)alkyl, (3-7C)cycloalkyl, (3-7C)cycloalkyl-(1-6C)alkyl, (3-7C) cycloalkenyl, (3-7C)cycloalkenyl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl, or (R1)m is (1-3C)alkylenedioxy,

and wherein adjacent carbon atoms in any (2-6C)alkylene chain within a R1 substituent are optionally separated by the insertion into the chain of a group selected from O, S, SO, SO2, N(R8), CO, CH(OR8), CON(R8), N(R8)CO, SO2N(R8), N(R8)SO2, CH═CH and C≡C wherein R8 is hydrogen or (1-6C)alkyl,

and wherein any CH2═CH— or HC≡C— group within a R1 substituent optionally bears at the terminal CH2═ or HC≡ position a substituent selected from halogeno, carboxy, carbamoyl, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, amino-(1-6C)alkyl, (1-6C)alkylamino-(1-6C)alkyl and di-[(1-6C)alkyl]amino-(1-6C)alkyl or from a group of the formula:

Q4—X2


wherein X2 is a direct bond or is selected from CO and N(R9)CO, wherein R9 is hydrogen or (1-6C)alkyl, and Q4 is aryl, aryl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl,

and wherein any CH2 or CH3, group within a R1 substituent optionally bears on each said CH2 or CH3 group one or more halogeno substituents or a substituent selected from hydroxy, cyano, amino, carboxy, carbamoyl, (1-6C)alkyl, (1-6C)alkoxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino and N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, or from a group of the formula:

—X3—Q5


wherein X3 is a direct bond or is selected from O, S, SO, SO2, N(R10), CO, CH(OR10), CON(R10), N(R10)CO, SO2N(R10), N(R10)SO2, C(R10)2O, C(R10)2S and N(R10)C(R10)2, wherein R10 is hydrogen or (1-6C)alkyl, and Q5 is aryl, aryl-(1-6C)alkyl, (3-7C)cycloalkyl, (3-7C)cycloalkyl-(1-6C)alkyl, (3-7C)cycloalkenyl, (3-7C)cycloalkenyl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl,

and wherein any aryl, heteroaryl or heterocyclyl group within a substituent on R1 optionally bears 1, 2 or 3 substituents, which may be the same or different, selected from halogeno, trifluoromethyl, cyano, nitro, hydroxy, amino, carboxy, carbamoyl, (1-6C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, (1-6C)alkoxy, (2-6C)alkenyloxy, (2-6C)alkynyloxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkyl-(2-6C)alkanoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino and N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, or from a group of the formula:

—X4—R11


wherein X4 is a direct bond or is selected from O and N(R12), wherein R12 is hydrogen or (1-6C)alkyl, and R11 is halogeno-(1-6C)alkyl, hydroxy-(1-6C)alkyl, (1-6C)alkoxy-(1-6C)alkyl, cyano-(1-6C)alkyl, amino-(1-6C)alkyl, (1-6C)alkylamino-(1-6C)alkyl, di-[(1-6C)alkyl]amino-(1-6C)alkyl, (2-6C)alkanoylamino-(1-6C)alkyl, (1-6C)alkoxycarbonylamino-(1-6C)alkyl, carbamoylalkyl, N-(1-6C)alkylcarbamoyl-(1-6C)alkyl or N,N-di-[(1-6C)alkyl]carbamoyl-(1-6C)alkyl, or from a group of the formula:

—X5—Q6


wherein X5 is a direct bond or is selected from O and N(R13), wherein R13 is hydrogen or (1-6C)alkyl, and Q6 is aryl, aryl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl, and any Q6 group optionally bears 1 or 2 substituents, which may be the same or different, selected from halogeno, (1-6C)alkyl and (1-6C)alkoxy,

and wherein any heterocyclyl group within a substituent or R1 optionally bears 1 or 2 oxo or thioxo substituents;

R2 is hydrogen or (1-6C)alkyl and R3 is hydrogen or (1-6C)alkyl, or R2 and R3 together form a CH2, (CH2)2 or (CH2)3 group,

R5 is hydrogen or (1-6C)alkyl, R5 and R6 together with the N atom to which they are attached from a 4- to 7-membered heterocyclic ring optionally containing a further heteroatom selected from O, N and S,

provided that one of the pairs of groups R2 and R4 together, R3 and R4 together and R5 and R4 together forms a bond;

Q2 is aryl, aryl-(1-3C)alkyl, aryl-(3-7C)cycloalkyl, heteroaryl, heteroaryl-(1-3C)alkyl or heteroaryl-(3-7C)cycloalkyl wherein each aryl group is phenyl or naphthyl and each heteroaryl group is a 5- or 6-membered monocyclic or a 9- or 10-membered bicyclic heteroaryl ring containing 1 or 2 nitrogen heteroatoms and optionally containing a further heteroatom selected from nitrogen, oxygen and sulphur, and

Q2 is optionally substituted with 1, 2, 3 or 4 substituents, which may be the same or different, selected from halogeno, trifluoromethyl, cyano, nitro, hydroxy, amino, carboxy, carbamoyl, (1-6C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, (1-6C)alkoxy, (2-6C)alkenyloxy, (2-6C)alkynyloxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, (3-6C)alkenoylamino, N-(1-6C)alkyl-(3-6C)alkenoylamino, (3-6C)alkynoylamino, N-(1-6C)alkyl-(3-6C)alkynoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino and N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, or from a group of the formula:

—X6—R14


wherein X6 is a direct bond or is selected from O and N(R15), wherein R15 is hydrogen or (1-6C)alkyl, and R14 is halogeno-(1-6C)alkyl, hydroxy-(1-6C)alkyl, (1-6C)alkoxy-(1-6C)alkyl, cyano-(1-6C)alkyl, amino-(1-6C)alkyl, (1-6C)alkylamino-(1-6C)alkyl or di-[(1-6C)alkyl]amino-(1-6C)alkyl, or from a group of the formula:

—X7—Q7


wherein X7 is a direct bond or is selected from O, S, SO, SO2, N(R16), CO, CH(OR16), CON(R16), N(R16)CO, SO2N(R16), N(R16)SO2, C(R16)2O, C(R16)2S and C(R16)2N(R16), wherein each R16 is hydrogen or (1-6C)alkyl, and Q7is aryl, aryl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl, or Q2 is optionally substituted with a (1-3C)alkylenedioxy group,

and wherein any aryl, heteroaryl or heterocyclyl group within a substituent on Q2 optionally bears 1, 2 or 3 substituents, which may be the same or different, selected from halogeno, trifluoromethyl, cyano, nitro, hydroxy, amino, carboxy, carbamoyl, (1-6C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, (1-6C)alkoxy, (2-6C)alkenyloxy, (2-6C)alkynyloxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino and N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, or from a group of the formula:

—X8—R17


wherein X8 is a direct bond or is selected from O and N(R18), wherein R18 is hydrogen or (1-6C)alkyl, and R17 is halogeno-(1-6C)alkyl, hydroxy-(1-6C)alkyl, (1-6C)alkoxy-(1-6C)alkyl, cyano-(1-6C)alkyl, amino-(1-6C)alkyl, (1-6C)alkylamino-(1-6C)alkyl or di-[(1-6C)alkyl]amino-(1-6C)alkyl,

and wherein any heterocyclyl group within a substituent on Q2 optionally bears 1 or 2 oxo or thioxo substituents; and

R6 is an optionally substituted group selected from (2-6C)alkenyl, (2-6C)alkynyl, (3-7C)cycloalkyl and (3-7C)cycloalkenyl, or R6 is a substituted (1-6C)alkyl group,

and wherein adjacent carbon atoms in any (2-6C)alkylene chain within a R6 group are optionally separated by the insertion into the chain of a group selected from O, S, SO, SO2, N(R19), CO, CH(OR19), CON(R19), N(R19)CO, SO2N(R19), N(R19)SO2, CH═CH and C≡C wherein R19 is hydrogen or (1-6C)alkyl,

and wherein any CH2═CH— or HC≡C group within a R6 group optionally bears at the terminal CH2═ or HC≡ position a substituent selected from halogeno, carboxy, carbamoyl, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, amino-(1-6C)alkyl, (1-6C)alkylamino-(1-6C)alkyl and di-[(1-6C)alkyl]amino-(1-6C)alkyl or from a group of the formula:

Q8—X9


wherein X9 is a direct bond or is selected from CO and N(R20), CO, wherein R20 is hydrogen or (1-6C)alkyl, and Q8 is aryl, aryl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl,

and wherein any CH2 or CH3 group within a R6 group optionally bears on each said CH2 or CH3 group one or more of the following substituents, provided that the R6 group when it is (1-6C)alkyl must bear at least one such substituent, one or more halogeno substituents or a substituent selected from hydroxy, cyano, amidino, amino, carboxy, carbamoyl, (1-6C)alkoxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino, N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, (1-6C)alkoxycarbonylamino, N-(1-6C)alkyl-(1-6C)alkoxycarbonylamino, N-[hydroxy-(2-6C)alkyl]carbamoyl, N-[(1-6C)alkoxy-(2-6C)alkyl]carbamoyl, N-[amino-(2-6C)alkyl]carbamoyl, N-[(1-6C)alkylamino-(2-6C)alkyl]carbamoyl, N-{di-[(1-6C)alkyl]amino-(2-6C)alkyl}carbamoyl, N,N-di-[hydroxy-(2-6C)alkyl]carbamoyl, N,N-di-[(1-6C)alkoxy-(2-6)alkyl]carbamoyl, N,N-[amino-(2-6C)alkyl]carbamoyl, N,N-di-[(1-6C)alkylamino-(2-6C)alkyl]carbamoyl and N,N-di-{di-[(1-6C)alkyl]amino-(2-6C)alkyl}carbamoyl,

or from a group of the formula:

—X10—Q9


wherein X10 is a direct bond or is selected from O, S, SO, SO2, N(R21), CO, CH(OR21), CON(R21), N(R21)CO, SO2N(R21), N(R21)SO2, C(R21)2O, C(R21)2S and N(R21)C(R21)2, wherein R21 is hydrogen or (1-6C)alkyl, and Q9 is aryl, aryl-(1-6C)alkyl, (3-7C)cycloalkyl, (3-7C)cycloalkyl-(1-6C)alkyl, (3-7C)cycloalkenyl, (3-7C)cycloalkenyl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl,

and wherein any aryl, heteroaryl or heterocyclyl group within a R6 group, or any heterocyclic group formed when R5 and R6 together with the N atom to which they are attached form a ring, optionally bears 1, 2 or 3 substituents, which may be the same or different, selected from halogeno, trifluoromethyl, cyano, nitro, hydroxy, amino, carboxy, carbamoyl, (1-6C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, (1-6C)alkoxy, (2-6C)alkenyloxy, (2-6C)alkynyloxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino and N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, or from a group of the formula:

—X11—R22


wherein X11 is a direct bond or is selected from O and N(R23), wherein R23 is hydrogen or (1-6C)alkyl, and R22 is halogeno-(1-6C)alkyl, hydroxy-(1-6C)alkyl, (1-6C)alkoxy-(1-6C)alkyl, cyano-(1-6C)alkyl, amino-(1-6C)alkyl, (1-6C)alkylamino-(1-6C)alkyl, di-[(1-6C)alkyl]amino-(1-6C)alkyl, (2-6C)alkanoylamino-(1-6C)alkyl, (1-6C)alkoxycarbonylamino-(1-6C)alkyl, carbamoyl-(1-6C)alkyl, N-(1-6C)alkylcarbamoyl-(1-6C)alkyl or N,N-di-[(1-6C)alkyl]carbamoyl-(1-6C)alkyl,

or from a group of the formula:

—X12—Q10


wherein X12 is a direct bond or is selected from O and N(R24), wherein R24 is hydrogen or (1-6C)alkyl, and Q10 is aryl, aryl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl, and any Q10 group optionally bears 1 or 2 substituents, which may be the same or different, selected from halogeno, (1-6C)alkyl and (1-6C)alkoxy,

and wherein any heterocyclyl group within a R6 group, or the heterocyclic group formed when R5 and R6 together with the N atom to which they are attached form a ring, optionally bears 1 or 2 oxo or thioxo substituents;

or a tautomer thereof or a pharmaceutically-acceptable salt thereof.

2. A quinazoline derivative of the Formula I according to claim 1 wherein:

m is 1 and the R1 group is located at the 6- or 7-position and is selected from methoxy, benzyloxy, cyclopropylmethoxy, 2-dimethylaminoethoxy, 2-diethylaminoethoxy, 3-dimethylaminopropoxy, 3-diethylaminopropoxy, 2-(1,2,3-triazol-1-yl)ethoxy, 3-(1,2,3-triazol-1-yl)propoxy, pyrid-2-ylmethoxy, pyrid-3-ylmethoxy, 2-pyrid-2-ylethoxy, 2-pyrid-3-ylethoxy, 2-pyrid-4-ylethoxy, 3-pyrid-2-propoxy, 3-pyrid-3-ylpropoxy, 3-pyrid-4-ylpropoxy, 2-pyrrolidin-1-ylethoxy, 3-pyrrolidin-1-ylpropoxy, pyrrolidin-3-yloxy, N-methylpyrrolidin-3-yloxy, pyrrolidin-2-ylmethoxy, N-methylpyrrolidin-2-ylmethoxy, 2-pyrrolidin-2-ylethoxy, 2-(N-methylpyrrolidin-2-yl)ethoxy, 3-pyrrolidin-2-ylpropoxy, 3-(N-methylpyrrolidin-2-yl)propoxy, 2-(2-oxoimidazolidin-1-yl)ethoxy, 2-morpholinoethoxy, 3-morpholinopropoxy, 2-(1,1-dioxotetrahydro-4H-1,4-thiazin-4-yl)ethoxy, 3-(1,1-dioxotetrahydro-4H-1,4-thiazin-4-yl)propoxy, 2-piperidinoethoxy, 3-piperidinopropoxy, piperidin-3-yloxy, piperidin-4-yloxy, N-methylpiperidin-4-yloxy, piperidin-3-ylmethoxy, N-methylpiperidin-3-ylmethoxy, 2-piperidin-3-ylethoxy, 2-(N-methylpiperidin-3-yl)ethoxy, piperidin-4-ylmethoxy, N-methylpiperidin-4-ylmethoxy, 2-piperidin-4-ylethoxy, 2-(N-methylpiperidin-4-yl)ethoxy, 3-(4-aminomethylpiperidin-1-yl)propoxy, 3-(4-tert-butoxycarbonylaminopiperidin-1yl)propoxy, 3-(4-carbamoylpiperidin-1-yl)propoxy, 2-piperazin-1-ylethoxy, 3-piperazin-1-ylpropoxy, 2-(4-methylpiperazin-1-yl)ethoxy, 3-(4-methylpiperazin-1-yl)propoxy, 4-morpholinobut-2-en-1-yloxy, 4-morpholinobut-2-yn-1-yloxy, 2-(2-morpholinoethoxy)ethoxy, 2-methylsulphonylethoxy, 3-methylsulphonylpropoxy, 2-[N-(2-methoxyethyl)-N-methylamino]ethoxy, 3 -[N-(2-methoxyethyl)-N-methylamino]propoxy, 2-(2-methoxyethoxy)ethoxy, 3-methylamino-1-propynyl, 3-dimethylamino-1-propynyl, 3-diethylamino-1-propynyl, 6-methylamino-1-hexynyl, 6-dimethylamino-1-hexynyl, 3-(pyrrolidin-1-yl)-1-propynyl, 3-(piperidino)-1-propynyl, 3-(morpholino)-1-propynyl, 3-(4-methylpiperazin-1-yl)-1-propynyl, 6-(pyrrolidin-1yl)-1-hexynyl, 6-(piperidino)-1-hexynyl, 6-(morpholino)-1-hexynyl, 6-(4-methylpiperazin-1-yl)-1-hexynyl, piperazin-1-yl, 4-methylpiperazin-1-yl, 3-imidazol-1-ylpropylamino, 3-pyrrolidin-1-ylpropylamino, 3-morpholinopropylamino, 3-piperidinopropylamino and 3-piperazin-1-ylpropylamino,

or m is 2 and the R1 groups are located at the 6- and 7-positions, one R1 group is located at the 6- or 7-position and is selected from the groups defined immediately hereinbefore and the other R1 group is a methoxy group;

each of R2, R3 and R5 is hydrogen except that one of the pairs of the groups R2 and R4 together, R3 and R4 together and R5 and R4 together forms a bond;

Q2 is phenyl, benzyl or phenethyl which optionally bears 1, 2 or 3 substituents, which may be the same or different, selected from fluoro, chloro, bromo, trifluoromethyl, nitro, methyl, ethyl and methoxy provided that at least one substituent is located at an ortho position; and

R6 is an optionally substituted group selected from allyl, 2-propynyl, cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl, or R6 is a substituted methyl, ethyl, propyl or butyl group,

and wherein adjacent atoms in any (2-6C)alkylene chain within a R6 group are optionally separated by the insertion into the chain of a group selected from O, NH, CH═CH and C≡C,

and wherein any CH2 or CH3 group within a R6 group optionally bears on each said CH2 or CH3 group one or more of the following substituents, provided that the R6 group when it is a methyl, ethyl, propyl or butyl group must bear at least one such substituent, one, two, or three fluoro substituents or a substituent selected from hydroxy, cyano, amidino, amino, carboxy, methoxy, methylthio, methylsulphinyl, methylsulphonyl, methylamino, dimethylamino, methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, tert-butoxycarbonyl, acetamido, phenyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, 1-imidazolyl, 2-imidazolyl, 4-imidazolyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, tetrahydrofuran-2-yl, pyrrolidin-1-yl, 1,4-dioxan-2-yl, morpholino, piperidino, piperazin-1-yl, homopiperidin-1-yl and homopiperazin-1-yl,

and wherein any phenol, imidazolyl, pyridyl or heterocyclyl group within a R6 group optionally bears 1 or 2 substituents, which may be the same or different, selected from fluoro, chloro, trifluoromethyl, hydroxy, amino, carbamoyl, methyl, ethyl and methoxy,

and wherein any heterocyclyl group within a R6 group optionally bears 1 or 2 oxo substituents,

or a pharmaceutically-acceptable acid-addition salt thereof.

3. A quinazoline derivative of the Formula I according to claim 1 wherein:—

m is 1 and the R1 group is located at the 6- or 7-position and is selected from 2-(2-methoxyethoxy)ethoxy, tetrahydrofuran-3-yloxy, tetrahydropyran-4-yloxy, tetrahydrofuran-2-ylmethoxy, tetrahydrofuran-3-ylmethoxy, tetrahydropyran-2-ylmethoxy, N-methylpyrrolidin-3-yloxy, 2-pyrrolidin-1-ylethoxy, 3-pyrrolidin-1-ylpropoxy, 3-morpholinylmethoxy, 2-morpholinoethoxy, 3-morpholinopropoxy, 2-(1,1-dioxotetrahydro-4H-1,4-thiazin-4-yl)ethoxy, 3-(1,1-dioxotetrahydro-4H-1,4-thiazin-4-yl)propoxy, 2-piperidinoethoxy, 3-piperidinopropoxy, piperidin-3-ylmethoxy, N-methylpiperidin-3-ylmethoxy, piperidin-4-ylmethoxy, N-methylpiperidin-4-ylmethoxy, N-(2-methoxyethyl)piperidin-4-ylmethoxy, 2-(4-methylpiperazin-1-yl)ethoxy, 3-(4-methylpiperazin-1-yl)propoxy, benzyloxy, cyclopropylmethoxy, 3-methylsulphonylpropoxy and 2-[N-(2-methoxyethyl)-N-methylamino]ethoxy;

or m is 2 and one R1 group is located at the 7-position and is selected from the groups defined immediately hereinbefore and the other R1 group is a 6-methoxy group;

or m is 2 and one R1 group is located at the 6-position and is selected from the groups defined immediately hereinbefore and the other R1 group is a 7-methoxy group;

each of R2, R3 and R5 is hydrogen except that one of the pairs of groups R2 and R4 together, R3 and R4 together and R5 and R4 together forms a bond;

Q2 is phenyl which bears 1, 2 or 3 substituents, which may be the same or different, selected from fluoro, chloro, bromo, trifluoromethyl, nitro, methyl, ethyl and methoxy provided that at least one substituent is located at an ortho position; and

R6 is allyl, 2-propynyl, cyclopropyl, cyclopropylmethyl, cyclobutyl, cyclopentyl or 4-hydroxycyclohexyl, or R6 is a substituted methyl, ethyl, propyl or butyl group,

and wherein adjacent carbon atoms in any propyl or butyl group are optionally separated by the insertion into the chain of an O group,

and wherein any CH2 or CH3 group within a R6 group when it is a methyl, ethyl, propyl or butyl group bears one, two or three fluoro substituents or a substituent selected from hydroxy, cyano, amidino, amino, carboxy, methoxy, ethoxy, methylthio, methylsulphinyl, methylsulphonyl, methylamino, ethylamino, isopropylamino, dimethylamino, methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, tert-butoxycarbonyl, N-methylcarbamoyl, N-ethylcarbamoyl, N-isopropylcarbamoyl, N-tert-butylcarbamoyl, acetamido, phenyl, cyclopropyl, 2-furyl, 2-thienyl, 4-imidazolyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, tetrahydrofuran-2-yl, pyrrolidin-1-yl, pyrrolidin-2-yl, 2-oxopyrrolidin-1-yl, 1,4-dioxan-2-yl, morpholino, piperidino, piperidin-2-yl and piperazin-1-yl,

and wherein any phenyl, heteroaryl or heterocyclyl group within a R6 group optionally bears 1 or 2 substituents, which may be the same or different, selected from fluoro, chloro, trifluoromethyl, hydroxy, methyl ethyl and methoxy;

or a pharmaceutically-acceptable acid-addition salt thereof.

4. A quinazoline derivative of the Formula I according to claim 1 wherein:—

m is 2 and one R1 group is a 6-methoxy group and the other R1 group is located at the 7-position and is selected from 2-(2-methoxyethoxy)ethoxy, 2-pyrrolidin-1-ylethoxy, 3-pyrrolidin-1-ylpropoxy, 2-morpholinoethoxy, 3-morpholinopropoxy, 2-piperidinoethoxy, 3-piperidinopropoxy, N-methylpiperidin-4-ylmethoxy, N-(2-methoxyethyl)piperidin-4-ylmethoxy, 2-(4-methylpiperazin-1-yl)ethoxy and 3-(4-methylpiperazin-1-yl)propoxy;

each of R2, R3 and R5 is hydrogen except that one of the pairs of groups R2 and R4 together, R3 and R4 together and R5 and R4 together forms a bond;

Q2 is phenyl which bears 1, 2 or 3 substituents, which may be the same or different, selected from fluoro, chloro, bromo and methyl provided that at least one substituent is located at an ortho position; and

R6 is allyl, 2-propynyl, cyclopropyl, cyclopropylmethyl, cyclobutyl, 4-hydroxycyclohexyl, 2,2,2-trifluoromethyl, 2,3-dihydroxypropyl, 2-aminoethyl, 3-aminopropyl, 2-methylaminoethyl, 3-methylaminopropyl, 2-dimethylaminoethyl, 3-dimethylaminopropyl, 2-hydroxyethyl, 3-hydroxypropyl, 2-methoxyethyl, 3-methoxypropyl, 2-methylthioethyl, 3-methylthiopropyl, 2-methylsulphonylethyl, 3-methylsulphonylpropyl, 2-(2-hydroxyethoxy)ethyl, 2-cyanoethyl, 5-cyanopentyl, 2-amidinoethyl, carboxymethyl, 2-carboxyethyl, methoxycarbonylmethyl, 2-methoxycarbonylethyl, tert-butoxycarbonylmethyl, 2-(tert-butoxycarbonyl)ethyl, N-methylcarbamoylmethyl, N-isopropylcarbamoylmethyl, N-tert-butylcarbamoylmethyl, benzyl, 2-fluorobenzyl, 3-fluorobenzyl, 2,6-difluorobenzyl, phenethyl, 2-furylmethyl, 2-thienylmethyl, 2-imidazol-4-ylethyl, 2-pyridylmethyl, 3-pyridylmethyl, 4-pyridylmethyl, 2-pyrid-2-ylethyl, tetrahydrofuran-2-ylmethyl, 1,4-dioxan-2-ylmethyl, 2-pyrrolidin-1-ylethyl, 2-(2-oxopyrrolidin-1-yl)ethyl, 2-(N-methylpyrrolidin-2-yl)ethyl, 3-pyrrolidin-1-ylpropyl, 3-(2-oxopyrrolidin-1-yl)propyl, 2-morpholinoethyl, 3-morpholinopropyl , 2-piperdinoethyl, 3-piperidinopropyl, 2-(4-methylpiperazin-1-yl)ethyl, 3-(4-methylpiperazin-1-yl)propyl, N-methylpiperidin-3-ylmethyl or N-methylpiperidin-4-ylmethyl;

or a pharmaceutically-acceptable acid-addition salt thereof.

5. A quinazoline derivative of the Formula I according to claim 1 selected from:—

N-(2-chloro-6-methylphenyl)-N′-(2-hydroxyethyl)-N"-[6-methoxy-7-(N-methylpiperidin-4-ylmethoxy)quinazolin-4-yl]guanidine,

N-allyl-N′-(2-chloro-6-methylphenyl)-N"-[6-methoxy-7-(3-pyrrolidin-1-ylpropoxy)quinazolin-4-yl]guanidine,

N-allyl-N′-(2,6-dimethylphenyl)-N"-[6-methoxy-7-(N-methylpiperidin-4-ylmethoxy)quinazolin-4-yl]guanidine, and

N-(2-chloro-6-methylphenyl)-N′-[6-methoxy-7-(N-methylpiperidin-4-ylmethoxy)quinazolin-4-yl]-N"-(2-propynyl)guanidine;

or a pharmaceutically-acceptable acid-addition salt thereof.

6. A process for the preparation of a quinazoline derivative of the Formula I, or a pharmaceutically-acceptable salt thereof, according to claim 1 which comprises:—

(a) the reaction of a thiourea of the Formula VI ##STR17##

wherein Q1, R2, Q2 and R3 have any of the meanings defined in claim 1 except that any functional group is protected if necessary, with an amine of the Formula VII ##STR18##

wherein R5 and R6 have any of the meanings defined in claim 1 except that any functional group is protected if necessary, whereafter any protecting group that is present is removed by conventional means;

(b) for the production of those compounds of the Formula I wherein Q1, R6 or Q2 contains a carboxy group, the cleavage of the corresponding compound of Formula I wherein Q1, R6 and Q2 contains a protected carboxy group;

(c) for those compounds of the Formula I wherein R6 or a substituent on Q1 or Q2 contains an alkylcarbamoyl groups or a substituted alkylcarbamoyl group, the reaction of the corresponding compound of Formula I wherein R6 or a substituent on Q1 or Q2 is a carboxy group, or a reactive derivative thereof, with an amine or substituted amine as appropriate;

(d) for those compounds of the Formula I wherein a substituent on Q1 or Q2 contains an amino-(1-6C)alkyl group or R6 an amino-(1-6C)alkyl group, the cleavage of the corresponding compound of Formula I wherein a substituent on Q1 or Q2 is a protected amino-(1-6C)alkyl group or R6 is a protected amino-(1-6C)alkyl group as appropriate;

(e) for those compounds of the Formula I wherein a substituent on Q1 or Q2 contains an amino group, the reduction of a corresponding compound of Formula I wherein a substituent on Q1 or Q2 contains a nitro group; or

(f) for the production of those compounds of the Formula I wherein Q1 contains a R1 group in a quinazoline-like ring of the formula Ia that is linked via an oxygen atom, the alkylation of the corresponding compound of Formula I wherein the R1 group in Q1 is a hydroxy group;

and optionally forming a pharmaceutically-acceptable salt thereof.

7. A pharmaceutical composition which comprises a quinazoline derivative of the Formula I, or a pharmaceutically-acceptable salt thereof, according to claim 1 in association with a pharmaceutically-acceptable diluent or carrier.

8. A method for the treatment of rheumatoid arthritis in a warm-blooded animal in need thereof, which comprises administering to said animal an effective amount of a quniazoline derivative of the Formula I, according to claim 1 or a pharmaceutically-acceptable salt thereof.

9. A method for the treatment of transplant rejection in a warm-blooded animal in need thereof, which comprises administering to said animal an effective amount of a quinazoline derivative of the Formula I, according to claim 1 or a pharmaceutically-acceptable salt thereof.
Description



This application is a 371 of PCT/GB01/02698 filed Jun. 19, 2001.

This invention concerns certain novel quinazoline derivatives which possess pharmacological properties of use in the treatment of autoimmune diseases or medical conditions, for example T cell mediated disease such as transplant rejection or rheumatoid arthritis. The invention also concerns processes for the manufacture of the quinazoline derivatives of the invention, pharmaceutical compositions containing them and their use in therapeutic methods, for example by virtue of inhibition of T cell mediated disease.

A critical requirement of the immune system is the ability to differentiate between "self" and "non-self" (i.e. foreign) antigens. This discrimination is required to enable the immune system to mount a response to foreign proteins such as those on the surface of pathogens whilst maintaining tolerance to endogenous proteins and thereby preventing damage to normal tissues. An autoimmune disease results when self-tolerance breaks down and the immune system reacts against tissues such as the joints in rheumatoid arthritis or nerve fibres in multiple sclerosis. Stimulation of the human immune response is dependent on the recognition of protein antigens by T cells. However T cells do not become activated by and respond to antigen alone but are only triggered into action when the antigen is complexed with major histocompatibility complex (MHC) molecules on the surface of an antigen-presenting cell such as a B cell, macrophage or dendritic cell. Thus T cell activation requires the docking into the T cell receptor of the peptide/MHC complex expressed on an antigen-presenting cell. This interaction, which confers the antigen specificity to the T cell response, is essential for full activation of T lymphocytes. Subsequent to this docking, some of the earliest signal transduction events leading to full T cell activation are mediated through the action of multiple tyrosine-specific protein kinases (E. Hsi et al., J. Biol. Chem., 1989, 264, 10836) including p56lck and ZAP-70. The tyrosine kinase p56lck is a lymphocyte specific member of the src family of non-receptor protein tyrosine kinases (J. D. Marth et al., Cell, 1985, 43, 393). The enzyme is associated with the inner surface of the plasma membrane where it binds to the T cell receptor associated glycoproteins CD4 (in helper T cells) and CD8 (in cytotoxic or killer T cells) (C. E. Rudd et al., Proc. Natl. Acad. Sci. USA, 1988, 85, 5190 and M. A. Campbell et al., EMBO J, 1990, 9, 2125).

It is believed that p56lck tyrosine kinase plays an essential role in T cell activation as, for example, the loss of p56lck expression in a human Jurkat T cell line prevents the normal T cell response to stimulation of the T cell receptor (D. B. Straus et al., Cell, 1992, 70 , 585) and a deficiency in p56lck expression causes severe immune deficiency in humans (F. D. Goldman et al., J. Clin. Invest, 1988, 102, 421).

Certain autoimmune conditions or diseases such as inflammatory diseases (for example rheumatoid arthritis, inflammatory bowel disease, glomerulonephritis and lung fibrosis), multiple sclerosis, psoriasis, hypersensitivity reactions of the skin, atherosclerosis, restenosis, allergic asthma and insulin-dependent diabetes are believed to be associated with inappropriate T cell activation (see, for example, J. H. Hanke et al., Inflamm. Res., 1995, 44, 357). In addition the acute rejection of transplanted organs can also be interpreted as a consequence of inappropriate T cell activation. Therefore, compounds which modulate T cell activation by way of inhibition of one or more of the multiple tyrosine-specific protein kinases which are involved in the early signal transduction steps which lead to full T cell activation, for example by way of inhibition of P56lck tyrosine kinase, are expected to provide therapeutic agents for such pathological conditions.

Without wishing to imply that the compounds disclosed in the present invention possess pharmacological activity only by virtue of an effect on a single biological process, it is believed that the compounds modulate T cell activation by way of inhibition of one or more of the multiple tyrosine-specific protein kinases which are involved in the early signal transduction steps which lead to full T cell activation, for example by way of inhibition of p56lck tyrosine kinase.

In particular, the quinazoline derivatives of the invention are expected to be useful as immunoregulation or immunosuppressive agents for the prevention or treatment of organ rejection following transplant surgery.

Agents of this kind would offer therapy for transplant rejection and autoimmune diseases whilst avoiding toxicities associated with the commonly used, less selective immunosuppressants. The leading agent for the prevention or treatment of transplant rejection is cyclosporin A which, although effective, is often associated with side-effects such as renal damage and hypertension which results in kidney failure in a substantial number of patients. It is contemporary practice to treat rheumatoid arthritis initially with symptom relief agents such as NSAIDs, which do not have any beneficial effect on disease progression and are often associated with unwanted side-effects. A rationally based, disease modifying agent, without such deleterious side-effects, would therefore offer significant benefits in the prevention or treatment of transplant rejection or autoimmune conditions such as rheumatoid arthritis.

As stated above, the present invention is based, in particular, on the discovery that the quinazoline derivatives of the invention modulate T cell activation by way of inhibition of one or more of the multiple tyrosine-specific protein kinases which are involved in the early signal transduction steps which lead to full T cell activation. Accordingly compounds of the present invention possess higher inhibitory potency against particular non-receptor tyrosine kinases such as p56lck tyrosine than against other non-receptor tyrosine kinases or against receptor tyrosine kinases (RTKs) such as epidermal growth factor (EGF) RTK. In general, the quinazoline derivatives of the invention possess sufficient potency in inhibiting non-receptor tyrosine kinases such as p56lck tyrosine kinase that they may be used in an amount sufficient to inhibit, for example, p56lck tyrosine kinase whilst demonstrating reduced potency, preferably whilst demonstrating no significant activity, against RTKs such as EGF RTK. Thus the quinazoline derivatives of the invention can be used in the clinical management of those particular diseases which are sensitive to inhibition of such non-receptor tyrosine kinases, for example autoimmune diseases or medical conditions, for example T cell mediated disease such as transplant rejection or rheumatoid arthritis.

It is disclosed by K. H. Gibson et al., Bioorganic & Medicinal Chemistry Letters, 1997, 7, 2723-2728 that certain 4-anilinoquinazoline derivatives possess useful EGF RTK inhibitory properties. It is also disclosed that 1-(6,7-dimethoxyquinazolin-4-yl)-3-phenylurea is inactive as an EGF RTK inhibitor.

It is disclosed in International Patent Application WO 98/50370 that certain 5-substituted quinazoline derivatives may be useful as inhibitors of serine/threonine protein kinases. Whilst most of the examples are 4-amino-5-phenoxyquinazolines, there is the disclosure of three 4-ureido-5-phenoxyquinazolines, namely of:—

1-[5-(4-methoxyphenoxy)quinazolin-4-yl]-3-phenylurea, 1-[5-(4-methoxyphenoxy)quinazolin-4-yl]-3-(3-bromophenyl)urea and 1-[5-(4-methoxyphenoxy)quinazolin-4-yl]-3-(3-methoxyphenyl)urea.

It is disclosed by C. I. Hong et al., J. Med. Chem., 1976, 19, 555-558 that certain 4-aminopyrazolo[3,4-d]pyrimidine derivatives possess growth inhibitory activity against cultured L1210 leukemia cells. The disclosed compounds include:—

1-phenyl-3-(pyrazolo[3,4-d]pyrimidin-4-yl)urea, 1-(2-chlorophenyl)-3-(pyrazolo[3,4-d]pyrimidin-4-yl)urea, 1-(3-chlorophenyl)-3-(pyrazolo[3,4-d]pyrimidin-4-yl)urea, 1-(4-chlorophenyl)-3-(pyrazolo[3,4-d]pyrimidin-4-yl)urea, 1-(2-fluorophenyl)-3-(pyrazolo[3,4-d]pyrimidin-4-yl)urea, 1-benzyl-3-(pyrazolo[3,4-d]pyrimidin-4-yl)urea and 1-(3-phenylpropyl)-3-(pyrazolo[3,4-d]pyrimidin-4-yl)urea.

It is disclosed in International Patent Application WO 97/03069 that certain quinoline and quinazoline derivatives may be useful as protein tyrosine kinase inhibitors. All of the disclosed examples are 4-heteroarylaminoquinazoline derivatives and none of them are 1-heteroaryl-3-(quinazolin-4-yl)urea derivatives.

It is disclosed in International Patent Application WO 98/43960 that certain 3-cyanoquinoline derivatives may be useful as protein tyrosine kinase inhibitors. Almost all of the 398 disclosed examples were 3-cyano-4-anilinoquinoline or 3-cyano-4-benzylaminoquinoline derivatives. There is no disclosure of any (3-cyanoquinolin-4-yl)urea derivatives.

It is disclosed in International Patent Application WO 99/09024 that certain 1-phenyl-3-(quinolin-4-yl)urea derivatives may be useful as antagonists of the human HFGAN72 receptor, a G-protein coupled neuropeptide receptor, and hence may be of potential use in the treatment of obesity. There is no disclosure as examples of any 1-phenyl-3-(quinazolin-4-yl)urea or 1 -phenyl-3-(3-cyanoquinolin-4-yl)urea compounds.

According to one aspect of the invention there is provided a quinazoline derivative of the Formula I ##STR1##
wherein Q1 is a quinazoline-like ring such as a group of the formula Ia, Ib, Ic or Id ##STR2##
wherein:

Y1 together with the carbon atoms to which it is attached forms a 5- or 6-membered aromatic or partially unsaturated ring comprising 1 to 3 heteroatoms selected from O, N and S;

Y2 together with the carbon atoms to which it is attached forms a 5- or 6-membered aromatic or partially unsaturated ring comprising 1 to 3 heteroatoms selected from O, N and S;

m is 0, 1, 2, 3 or 4;

each R1 group, which may be the same or different, is selected from halogeno, trifluoromethyl, cyano, isocyano, nitro, hydroxy, mercapto, amino, formyl, carboxy, carbamoyl, (1-6C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, (1-6C)alkoxy, (2-6C)alkenyloxy, (2-6C)alkynyloxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, (3-6C)alkenoylamino, N-(1,6C)alkyl-(3-6C)alkenoylamino, (3-6C)alkynoylamino, N-(1-6C)alkyl-3-6C)alkynoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino and N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, or from a group of the formula:

Q3—X1

wherein X1 is a direct bond or is selected from O, S, SO, SO2, N(R7), CO, CH(OR7), CON(R7), N(R7)CO, SO2N(R7), N(R7)SO2, OC(R7)2, SC(R7)2 and N(R7)C(R7)2, wherein R7 is hydrogen or (1-6C)alkyl, and Q3 is aryl, aryl-(1-6C)alkyl, (3-7C)cycloalkyl, (3-7C)cycloalkyl-(1-6C)alkyl, (3-7C)cycloalkenyl, (3-7C)cycloalkenyl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl, or (R1)m is (1-3C)alkenedioxy,
    • and wherein adjacent carbon atoms in any (2-6C)alkylene chain within a R1 substituent are optionally separated by the insertion into the chain of a group selected from O, S, SO, SO2, N(R8), CO, CH(OR8), CON(R8), N(R8)CO, SO2N(R8), N(R8)SO2, CH═CH and C≡C wherein R8 is hydrogen or 1-6C)alkyl,


  • and wherein any CH2═CH— or HC≡C— group within a R1 substituent optionally bears at ther terminal CH2═ or HC≡ position a substituent selected from halogeno, carboxy, carbamoyl, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, amino-(1-6C)alkyl, (1-6C)alkylamino-(1-6C)alkyl and di-[(1-6C)alkyl]amino (1-6C)alkyl or from a group of the formula:

    Q4—X2

    wherein X2 is a direct bond or is selected from CO and N(R9)CO, wherein R9 is hydrogen or (1-6C)alkyl, and Q4 is aryl, aryl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl,

    and wherein any CH2 or CH3 group within a R1 substituent optionally bears on each said CH2 or CH3 group one or more halogeno substituents or a substituent selected from hydroxy, cyano, amino, carboxy, carbamoyl, (1-6C)alkyl, (1-6C)alkoxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino and N-(1-6-C)alkyl-(1-6C)alkanesulphonylamino, or from a group of the formula:

    —X3—Q5

    wherein X3 is a direct bond or is selected from O, S, SO, SO2, N(R10), CO, CH(OR10), CON(R10), N(R10)CO, SO2N(R10), N(R10)SO2, C(R10)2O, C(R10)2S and N(R10)C(R10)2, wherein R10 is hydrogen or (1-6C)alkyl, and Q5 is aryl, aryl-(1-6C)alkyl, (3-7C)cycloalkyl, (3-7C)cycloalkyl-(1-6C)alkyl, (3-7C)cycloalkenyl, (3-7C)cycloalkenyl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl,

    and wherein any aryl, heteroaryl or heterocyclyl group within a substituent on R1 optionally bears 1, 2 or 3 substituents, which may be the same or different, selected from halogeno, trifluoromethyl, cyano, nitro, hydroxy, amino, carboxy, carbamoyl, (1-6C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, (1-6C)alkoxy, (2-6C)alkenyloxy, (2-6C)alkynyloxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino and N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, or from a group of the formula:

    —X4—R11

    wherein X4 is a direct bond or is selected from O and N(R12), wherein R12 is hydrogen or (1-6C)alkyl, and R11 is halogeno-(1-6C)alkyl, hydroxy-(1-6C)alkyl, (1-6C)alkoxy-(1-6C)alkyl, cyano-(1-6C)alkyl, amino-(1-6C)alkyl, (1-6C)alkylamino-(1-6C)alkyl, di-[(1-6C)alkyl]amino-(1-6C)alkyl, (2-6C)alkanoylamino-(1-6C)alkyl, (1-6C)alkoxycarbonylamino-(1-6C)alkyl, carbamoyl-(1-6C)alkyl, N-(1-6C)alkylcarbamoyl-(1-6C)alkyl or N,N-di-[(1-6C)akyl]carbamoyl-(1-6C)alkyl, or from a group of the formula:

    —X5—Q6

    wherein X5 is a direct bond or is selected from O and N(R13), wherein R13 is hydrogen or (1-6C)alkyl, and Q6 is aryl, aryl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl, and any Q6 group optionally bears 1 or 2 substituents, which may be the same or different, selected from halogeno, (1-6C)alkyl and (1-6C)alkoxy,

    and wherein any heterocyclyl group within a substituent on R1 optionally bears 1 or 2 oxo or thioxo substituents;

    R2 is hydrogen or (1-6C)alkyl and R3 is hydrogen or (1-6C)alkyl, or R2 and R3 together form a CH2, (CH2)2 or (CH2)3 group,

    R5 is hydrogen or (1-6C)alkyl, or R5 and R6 together with the N atom to which they are attached form a 4- to 7-membered heterocyclic ring optionally containing a further heteroatom selected from O, N and S,

    provided that one of the pairs of groups R2 and R4 together, R3 and R4 together and R5 and R4 together forms a bond;

    Q2 is aryl, aryl-(1-3C)alkyl, aryl-(3-7C)cycloalkyl, heteroaryl, heteroaryl-(1-3C)alkyl or heteroaryl-(3-7C)cycloalkyl wherein each aryl group is phenyl or naphthyl and each heteroaryl group is a 5- or 6-membered monocyclic or a 9- or 10-membered bicyclic heteroaryl ring containing 1 or 2 nitrogen heteroatoms and optionally containing a further heteroatom selected from nitrogen, oxygen and sulphur, and

    Q2 is optionally substituted with 1, 2, 3, or 4 substituents, which may be the same or different, selected from halogeno, trifluoromethyl, cyano, nitro, hydroxy, amino, carboxy, carbamoyl, (1-6C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, (1-6C)alkoxy, (2-6C)alkenyloxy, (2-6C)alkynyloxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, (3-6C)alkenoylamino, N-(1-6C)alkyl-(3-6C)alkenoylamino, (3-6C)alkynoylamino, N-(1-6C)alkyl-(3-6C)alkynoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino and N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, or from a group of the formula:

    —X6—R14

    wherein X6 is a direct bond or is selected from O and N(R15), wherein R15 is hydrogen or (1-6C)alkyl, and R14 is halogeno-(1-6C)alkyl, hydroxy-(1-6C)alkyl, (1-6C)alkoxy-(1-6C)alkyl, cyano-(1-6C)alkyl, amino-(1-6C)alkyl, (1-6C)alkylamino-(1-6C)alkyl or di-[(1-6C)alkyl]amino-(1-6C)alkyl, or from a group of the formula:

    —X7—Q7

    wherein X7 is a direct bond or is selected from O, S, SO, SO2, N(R16), CO, CH(OR16), CON(R16), N(R16)CO, SO2N(R16), N(R16)SO2, C(R16)2O, C(R16)2S and C(R16)2N(R16), wherein each R16 is hydrogen or (1-6C)alkyl, and Q7 is aryl, aryl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl, or Q2 is optionally substituted with a (1-3C)alkylenedioxy group,

    and wherein any aryl, heteroaryl or heterocyclyl group within a substituent on Q2 optionally bears 1, 2 or 3 substituents, which may be the same or different, selected from halogeno, trifluoromethyl, cyano, nitro, hydroxy, amino, carboxy, carbamoyl, (1-6C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, (1-6C)alkoxy, (2-6C)alkenyloxy, (2 -6C)alkynyloxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino and N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, or from a group of the formula:

    —X8—R17

    wherein X8 is a direct bond or is selected from O and N(R18), wherein R18 is hydrogen or (1-6C)alkyl, and R17 is halogeno-(1-6C)alkyl, hydroxy-(1-6C)alkyl, (1-6C)alkoxy-(1-6C)alkyl, cyano-(1-6C)alkyl, amino-(1-6C)alkyl, (1-6C)alkylamino-(1-6C)alkyl or di-[(1-6C)alkyl]amino-(1-6C)alkyl,

    and wherein any heterocyclyl group within a substituent on Q2 optionally bears 1 or 2 oxo or thioxo substituents; and

    R6 is an optionally substituted group selected from (2-6C)alkenyl, (2-6C)alkynyl, (3-7C)cycloalkyl and (3-7C)cycloalkenyl, or R6 is a substituted (1-6C)alkyl group,

    and wherein adjacent carbon atoms in any (2-6C)alkylene chain within a R6 group are optionally separated by the insertion into the chain of a group selected from O, S, SO, SO2, N(R19), CO, CH(OR19), CON(R19), N(R19)CO, SO2N(R19), N(R19)SO2 , CH═CH and C≡C wherein R19 is hydrogen or (1-6C)alkyl,

    and wherein any CH2═CH or HC≡C— group within a R6 group optionally bears at the terminal CH2═ or HC≡ position a substituent selected from halogeno, carboxy, carbamoyl, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, amino-(1-6C)alkyl, (1-6C)alkylamino-(1-6C)alkyl and di-[(1-6C)alkyl]amino-(1-6C)alkyl or from a group of the formula:

    Q8—X9

    wherein X9 is a direct bond or is selected from CO and N(R20)CO, wherein R20 is hydrogen or (1-6C)alkyl, and Q8 is aryl, aryl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(1-6C)alkyl,

    and wherein any CH2 or CH3 group within a R6 group optionally bears on each said CH2 or CH3 group one or more of the following substituents, provided that the R6 group when it is (1-6C)alkyl must bear at least one such substituent,

    one or more halogeno substituents or a substituent selected from hydroxy, cyano, amidino, amino, carboxy, carbamoyl, (1-6C)alkyl, (1-6C)alkoxy, (1-6C)alkylthio, (1-6C)alkylsulphinyl, (1-6C)alkylsulphonyl, (1-6C)alkylamino, di-[(1-6C)alkyl]amino, (1-6C)alkoxycarbonyl, N-(1-6C)alkylcarbamoyl, N,N-di-[(1-6C)alkyl]carbamoyl, (2-6C)alkanoyl, (2-6C)alkanoyloxy, (2-6C)alkanoylamino, N-(1-6C)alkyl-(2-6C)alkanoylamino, N-(1-6C)alkylsulphamoyl, N,N-di-[(1-6C)alkyl]sulphamoyl, (1-6C)alkanesulphonylamino, N-(1-6C)alkyl-(1-6C)alkanesulphonylamino, (1-6C)alkoxycarbonylamino, N-(1-6C)alkyl-(1-6C)alkoxycarbonylamino, N-[hydroxy-(2-6C)alkyl]carbamoyl, N-[(1-6C)alkoxy-(2-6C)alkyl]carbamoyl, N-[amino-(2-6C)alkyl]carbamoyl, N-[(1-6C)alkylamino-(2-6C)alkyl]carbamoyl, N-{di -[(1-6C)alkyl]amino-(2-6C)alkyl}carbamoyl, N,N-di-[hydroxy-(2-6C)alkyl]carbamoyl, N,N-di-[(1-6C)alkoxy-(2-6C)alkyl]carbamoyl, N,N-di-[amino-(2-6C)alkyl]carbamoyl, N,N-di-[(1-6C)alkylamino-(2-6C)alkyl]carbamoyl and N,N-di-{di-[(1-6C)alkyl]amino-(2-6C)alkyl}carbamoyl,

    or from a group of the formula:

    —X10—Q9

    wherein X10 is a direct bond or is selected from O, S, SO, SO2, N(R21), CO, CH(OR21), CON(R21), N(R21)CO, SO2N(R21), N(R21)SO2, C(R21)2O, C(R21)2S and N(R21)C(R21)2, wherein R21 is hydrogen or (1-6C)alkyl, and Q9 is aryl, aryl-(1-6C)alkyl, (3-7C)cycloalkyl, (3-7C)cycloalkyl-(1-6C)alkyl, (3-7C)cycloalkenyl, (3-7C)cycloalkenyl-(1-6C)alkyl, heteroaryl, heteroaryl-(1-6C)alkyl, heterocyclyl or heterocyclyl-(


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