Quinazoline derivatives and pharmaceutical compositions containing them

A quinazoline derivative of the formula I:

• wherein:
• m is an integer from 1 to 2;
• R1 represents hydrogen, hydroxy, halogeno, nitro, trifluoromethyl, cyano, C1-3alkyl, C1-3alkoxy, C1-3alkylthio, or —NR5R6 (wherein R5 and R6, which may be the same or different, each represents hydrogen or C1-3alkyl);
• R2 represents hydrogen, hydroxy, halogeno, methoxy, amino or nitro;
• R3 represents hydroxy, halogeno, C1-3alkyl, C1-3alkoxy, C1-3alkanoyloxy, trifluoromethyl, cyano, amino or nitro;
• X1 represents —CH2—, —S—, —SO—, —SO2—, —NR7CO—, —CONR8—, —SO2NR9—, —NR10SO2— or —NR11— (wherein R7, R8, R9, R10, and R11 each independently represents hydrogen, C1-3alkyl or C1-3alkoxyC2-3alkyl);
• R4 is selected from one of the following twelve groups:
• 1) C1-5alkylR12 (wherein R12 is a 5 or 6 membered saturated heterocyclic group with one or two heteroatoms, selected independently from O, S and N, which heterocyclic group is linked to C1-5alkyl through a carbon atom and which heterocyclic group may bear one or two substituents selected from oxo, hydroxy, halogeno, C1-4alkyl, C1-4hydroxyalkyl, C1-4alkoxy, carbamoyl, C1-4alkylcarbamoyl, N,N-di(C1-4alkyl)carbamoyl, C1-4alkanoyl and C1-4alkoxycarbonyl) or C1-5alkylR13 (wherein R13 is a group selected from pyrrolidin-1-yl, imidazolidin-1-yl and thiomorpholino, which group may bear one or two substituents selected from oxo, hydroxy, halogeno, C1-4alkyl, C1-4hydroxyalkyl, C1-4alkoxy, carbamoyl, C1-4alkylcarbamoyl, N,N-di(C1-4alkyl)carbamoyl, C1-4alkanoyl and C1-4alkoxycarbonyl);
• 2) C2-5alkenylR14 (wherein R14 is a 5 or 6 membered saturated heterocyclic group with one or two heteroatoms, selected independently from O, S and N, which heterocyclic group may bear one or two substituents selected from oxo, hydroxy, halogeno, C1-4alkyl, C1-4hydroxyalkyl, C1-4alkoxy, carbamoyl, C1-4alkylcarbamoyl, N,N-di(C1-4alkyl)carbamoyl, C1-4alkanoyl and C1-4alkoxycarbonyl);
• 3) C2-5alkynylR15 (wherein R15 is a 5 or 6 membered saturated heterocyclic group with one or two heteroatoms, selected independently from O, S and N, which heterocyclic group may bear one or two substituents selected from oxo, hydroxy, halogeno, C1-4alkyl, C1-4hydroxyalkyl, C1-4alkoxy, carbamoyl, C1-4alkylcarbamoyl, N,N-di(C1-4alkyl)carbamoyl, C1-4alkanoyl and C1-4alkoxycarbonyl);
• 4) C1-5alkylX2C1-5alkylX3R16 (wherein X2 and X3 which may be the same or different are each —O—, —S—, —SO—, —SO2—, —NR17CO—, —CONR18—, —SO2NR19—, —NR20SO2— or —NR21— (wherein R17, R18, R19, R20 and R21 each independently represents hydrogen, C1-3alkyl or C1-3alkoxyC2-3alkyl) and R16 represents hydrogen or C1-3alkyl) with the proviso that X1 cannot be —CH2— when R4 is C1-5alkylX2C1-5alkylX3R16;
• 5) C1-5alkylX4COR22 (wherein X4 represents —O— or —NR— (wherein R represents hydrogen, C1-3alkyl or C1-3alkoxyC2-3alkyl) and R22 represents —NR24R25 or —OR26 (wherein R24, R25 and R26 which may be the same or different each represents hydrogen, C1-4alkyl or C1-3alkoxyC2-3alkyl));
• 6) C1-5 alkylX5R27 (wherein X5 represents —O—, —S—, —SO—, —SO2—, —OCO—, —NR28CO—, —CONR29—, —SO2NR30—, —NR31SO2— or —NR32 — (wherein R28, R29, R30, R31 and R32 each independently represents hydrogen, C1-3alkyl or C1-3alkoxyC2-3alkyl) or X5 is carbonyl, and R27 represents cyclopentyl, cyclohexyl or a 5 or 6 membered saturated heterocyclic group with one or two heteroatoms, selected independently from O, S and N, which cyclopentyl, cyclohexyl or heterocyclic group may bear one or two substituents selected from oxo, hydroxy, halogeno, C1-4alkyl, C1-4hydroxyalkyl, C1-4alkoxy, carbamoyl, C1-4 alkylcarbamoyl, N,N-di(C1-4alkyl)carbamoyl, C1-4alkanoyl and C1-4alkoxycarbonyl or R27 is C1-3alkyl with the proviso that when R27 is C1-3alkyl, X5 is —S—, —SO—, —SO2—, —SO2NR30— or —NR31SO2— and X1 is not —CH2—);
• 7) C1-3alkoxyC2-4alkyl provided that X1 is —S—, —SO— or —SO2—;
• 8) C1-5alkylX6C1-5alkylR33 (wherein X6 represents —O—, —S—, —SO—, —SO2—, —NR34CO—, —CONR35—, —SO2NR36—, —NR37SO2— or —NR38— (wherein R34, R35, R36, R37 and R38 each independently represents hydrogen, C1-3alkyl or C1-3alkoxyC2-3alkyl) and R33 represents cyclopentyl, cyclohexyl or a 5 or 6 membered saturated heterocyclic group with one or two heteroatoms, selected independently from O, S and N, which cyclopentyl, cyclohexyl or heterocyclic group may bear one or two substituents selected from oxo, hydroxy, halogeno, C1-4alkyl, C1-4hydroxyalkyl, C1-4alkoxy, carbamoyl, C1-4alkylcarbamoyl, N,N-di(C1-4alkyl)carbamoyl, C1-4alkanoyl and C1-4alkoxycarbonyl);
• 9) R39 (wherein R39 is a group selected from pyrrolidin-3-yl, piperidin-3-yl and piperidin-4-yl which group may bear one or two substituents selected from oxo, hydroxy, halogeno, C1-4alkyl, C1-4hydroxyalkyl, C1-4alkoxy, carbamoyl, C1-4alkylcarbamoyl, N,N-di(C1-4alkyl)carbamoyl, C1-4alkanoyl and C1-4alkoxycarbonyl);
• 10) C1-5alkylR40 (wherein R40 is piperazin-1-yl which bears at least one substituent selected from C1-4alkanoyl, C1-4alkoxycarbonyl, C1-4hydroxyalkyl and —CONR41R42 (wherein R41 and R42 each independently represents hydrogen or C1-4alkyl);
• 11) C1-5alkylR43 (wherein R43 is morpholino which may bear one or two substituents selected from oxo, C1-4alkyl, C1-4hydroxyalkyl, carbamoyl, C1-4alkylcarbamoyl, N,N-di(C1-4alkyl)carbamoyl, C1-4alkanoyl and C1-4alkoxycarbonyl) with the proviso that when R4 is C1-5alkylR43, X1 is —S—, —SO—, —SO2—, —SO2NR9— or —NR10SO2—;
• and
• 12) C1-5alkylR44 (wherein R44 is morpholino which bears at least one and optionally two substituents selected from oxo, C1-4alkyl, C1-4hydroxyalkyl, carbamoyl, C1-4alkylcarbamoyl, N,N-di(C1-4alkyl)carbamoyl, C1-4alkanoyl and C1-4alkoxycarbonyl);
• and salts thereof.