| 摘要 |
Compounds of general formula (I) <IMAGE> (I) wherein R1 is a 2-pyridyl, 3-pyridyl or 4-pyridyl group; (b) a phenyl ring, unsubstituted or substituted by one or two groups chosen from halogen, trihalo-C1-C4 alkyl, C1-C6 alkyl, nitro, amino and C2-C6 alkanoylamino; (c) benzyl; or (d) C1-C6 alkyl; each of R2 and R3 independently is a hydrogen or a halogen atom or C1-C6 alkyl; R4 is hydrogen, C1-C6 alkyl or phenyl; R5 is (a') <IMAGE> wherein each of R6 and R7 independently is hydrogen or C1-C6 alkyl, or R6 and R7, taken together with the nitrogen atom to which they are linked, form a morpholino, piperidino, N-pyrrolidinyl or N-piperazinyl ring, wherein the N-piperazinyl ring is unsubstituted or substituted by C1-C6 alkyl; (b') a <IMAGE> wherein R8 is hydrogen, C1-C4 alkyl, C1-C4 alkoxy or halogen; (c') -NHR9, wherein R9 is a 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-pyrimidinyl, 2-pyrazinyl, 3-pyrazolyl, 2-thiazolyl or 2-benzothiazolyl group, each of these groups being unsubstituted or substituted by one or two groups chosen from halogen, C1-C6 alkyl, phenyl, hydroxy and C1-C6 alkoxy; (d') <IMAGE> wherein m is 1, 2 or 3 and R6 and R7 are as defined above; or the pharmaceutically acceptable salts thereof; are disclosed as anti-inflammatory agents. |
