| 摘要 |
1,3-Dihydro-1-(pyridinylamino)-2H-indol-2-ones, a process for their preparation and their use as medicaments This invention relates to 1,3-dihydro-1- (pyridinylamino)-2H-indol-2-ones of the formula (see formula I) where R1, R2 and R3 are independently hydrogen, loweralkyl, aryl, arylloweralkyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl; or R2 and R3 together form a cycloalkane ring of 4 to 6 carbons or a spiro-fused aryl cycloalkane or heterocycloalkyl selected from the group consisting of piperidine and tetrahydropyran; X and Y are independently hydrogen, halogen, hydroxy, loweralkyl, loweralkoxy, nitro, amino or trifluoromethyl; m and n are independently integers of 1 to 3, the pharmaceutically acceptable acid addition salts thereof and, where applicable the optical, geometrical and stereoisomers and racemic mixtures thereof and to a process for their preparation. The compounds of this invention display utility as analgesics, anticonvulsants, for enhancing memory and for the treatment of Alzheimer's disease.
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