C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/231, 260/278
C07D 401/12 (2006.01) A61K 31/44 (2006.01) C07D 401/14 (2006.01) C07D 409/14 (2006.01) C07D 471/10 (2006.01)
Patent
CA 2022488
This invention relates to 2,3-dihydro-1-(pyridinylamino)-indoles of the formula (see above formula) wherein R1 is hydrogen, loweralkyl, aryl, arylloweralkyl, alkenyl, alkynyl or heteroarylloweralkyl selected from the group consisting of pyridinylmethyl, pyridinylethyl, thienylmethyl, thienylethyl; 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 or heteroaryl cycloalkane; 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 appropriate, the optical, geometrical and stereoisomers and racemic mixtures thereof. The compounds of this invention are useful as analgesics, anticonvulsants, for enhancing memory and for the treatment of Alzheimer's disease.
Effland Richard Charles
Klein Joseph Thomas
Wettlaufer David Gordon
Aventis Pharmaceuticals Inc.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
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