PIPERIDINE DERIVATIVES AS MODULATORS OF CHEMOKINE RECEPTOR CCR5

FIELD: chemistry. ^ SUBSTANCE: in new compounds with formula (I): (I) A is absent or represents (CH2)2; L is CH or N; M is NR1, O, S, S(O) or S(O)2; R1 is C1-6alkyl, substituted with phenyl {which itself is possibly substituted with halogen, C1-4alkyl, C1-4alkoxy, CF3}; phenyl {which is possibly substituted with halogen, C1-4alkyl, C1-4alkoxy, CF3, C1-4alkylthio}, S(O)2R, S(O)2NR6R7, C(O)R8; R2 is phenyl (which is possibly substituted with halogen, CN or C1-4halogenalkyl), thienyl or halogenthienyl; R3 is hydrogen or methyl; Rb is hydrogen or C1-3alkyl; R4 is a five- or six-member heterocycle, containing at least one carbon atom, one to four nitrogen atoms and, possibly, one oxygen or sulphur atom, where the carbon atom in the said heterocycle R4 is possibly substituted with oxo, C1-6alkyl [which is possibly substituted with halogen, OH, C1-4alkoxy, S(C1-4alkyl) group or piperidinyl {which it self is possibly substituted with benzene [which is possibly substituted with a S(O)2(C1-4alkyl) group], C(O)(C1-4alkoxy) group, C(O)NH2, C(O)NH(C1-4alkyl), C(O)N(C1-4alkyl)2 or S(O)2(C1-4alkyl) [where alkyl is possibly substituted with fluoro]}], C3-6cycloalkyl, CN, C(O)NH2, C(O)NH(phenylC1-2alkyl) group, phenyl [which is possibly substituted with a S(O)2(C1-4alkyl) group] or benzyl [which is possibly substituted with a S(O)2(C1-4alkyl) group]; if possible, the nitrogen atom in the said heterocycle R4 is substituted with C1-6alkyl [which is possibly substituted with C1-4alkoxy, S(O)(C1-4alkyl) group, S(O)2(C1-4alkyl), C(O)(C1-4alkoxy), CONH2, CONH(C1-4alkyl), CON(C1-4alkyl)2, phenyl{which is possibly substituted with C1-4alkyl, C1-4alkoxy, S(O)(C1-4alkyl) group or S(O)2(C1-4alkyl)}, piperidinyl {which is possibly substituted with a S(O)(C1-4alkyl) group or S(O)2(C1-4alkyl)}], C3-6cycloalkyl, CO(C1-4alkyl) group [which is possibly substituted with a halogen], S(O)2(C1-4alkyl) group [which is possibly substituted with fluorine], COO(C1-6alkyl) group, phenyl [which is possibly substituted with a S(O)(C1-4alkyl) or S(O)2(C1-4alkyl) group]; - under the condition that the nitrogen atom in the said heterocycle R4 is substituted with an alky group, the said alkyl does not have C1-4alkoxy, S(O)(C1-4alkyl) or S(O)2(C1-4alkyl) substitute on the carbon atom, bonded to the nitrogen atom in the said heterocycle R4; - five- or six-member heterocyle R4 is possibly condensed with cyclohexane, piperadine, benzole, pyridine, pyridazine, pyrimidine or pyrazine ring; ring carbon atoms in