5-(1-Hydroxy-2-(heterocyclic amino))ethyl-8-hydroxy-3,4-dihydrocarbostyril derivatives
AssigneeOtsuka Pharmaceutical Co., Ltd.
InventorsKazuyuki Nakagawa, Shiro Yoshizaki, Kaoru Tanimura, Shigeharu Tamada
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Abstract
5-[1-HYDROXY-2-(HETEROCYCLIC AMINO)]ETHYL-8-HYDROXY-3,4-DIHYDROCARBOSTYRIL DERIVATIVES REPRESENTED BY THE FORMULA (I) wherein A, when taken together with the nitrogen atom to which it is attached, forms a 6-membered substituted or unsubstituted heterocyclic ring containing 1 or 2 nitrogen, or oxygen atoms as hetero atoms, the pharmaceutically acceptable acid addition salts thereof, and a process for preparing the above compounds.
Claims4
A 5-[1-hydroxy-2-(heterocyclic amino)]ethyl-8-hydroxy-3,4-dihydrocarbostyril compound represented by the formula (I) ##STR18## wherein A, when taken together with the nitrogen atom to which it is attached, forms a 6-membered heterocyclic ring selected from the group consisting of piperazino and morpholino, said heterocyclic ring being unsubstituted or substituted with an alkyl group having one to four carbon atoms.
Dependencies are inferred from the claim text.