Heterotertracyclic lactam derivatives, pharmaceutical compositio

Details Heterotertracyclic lactam derivatives, pharmaceutical compositio Heterotertracyclic lactam derivatives, pharmaceutical compositio

1988-04-20

1990-01-30

Shah, Mukund J.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

546 66, A61K 31435, C07D47102

Patent

active

048973998

ABSTRACT:
Disclosed are the compounds of formula I: ##STR1## wherein R.sub.1 -R.sub.3 represent hydrogen or lower alkyl; m represents the integer 2 or 3; n represents the integer 1 or 2; Het represents a pyrrole or imidazole ring bonded at any two adjacent positions and optionally substituted by one or two or lower alkyl; and pharmaceutically acceptable salts of compounds of formula I wherein Het represents optionally substituted imidazole; their methods of preparation; pharmaceutical compositions thereof, and their use for treating cognitive disorders in mammals.

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