5-(1-AMINOCYCLOHEXYL)-2(1H)-PYRIDINONE COMPOUNDS AND INTERMEDIATES IN THE PRODUCTION THEREOF

摘要

There are described compounds and methods of preparation of the formulae <IMG> where n is 1, 2 cr 3: R3 is hydrogen or loweralkyl; R4 is hydrogen or loweralkyl; R9 is hydrogen, lowexalkyl or arylloweralkyl; and Ar is a phenyl group optionally mono-substituted with a loweralkyl, loweralkoxy, halogen or trifluoromethyl group; wherein these compounds are useful as intermediates in the production of compounds for use as analgesic agents and for treatment of various memory dysfunctions. Methods for preparing these intermediates are described.