Azetidinyl acetonitrile and acetamide antiarrhythmia compositions and
申请人:A. H. Robins Company, Incorporated
公开号:US04133881A1
公开(公告)日:1979-01-09
.alpha.-(1-R-3-Azetidinyl)-.alpha.-phenyl-.alpha.-substituted-acetamides and -acetonitriles represented by the following formula: ##STR1## wherein R represents hydrogen, lower alkyl, lower cycloalkyl or phenyllower alkyl, R.sup.1 represents phenyl or 2-pyridyl, and Y is carbamoyl or cyano having antiarrhythmic activity are disclosed. Pharmaceutically acceptable acid addition salts of the free bases and quaternary salts are included as part of the invention.
This invention provides a novel class of 3-methyleneazetidines which include diphenylmethyl derivatives such as 1-isopropyl-3-diphenylmethyleneazetidine oxalate: ##STR1## This illustrated 3-methyleneazetidine compound is characterized by a combination of pharmacological properties which are indicative of utility as a mood elevating therapeutic agent for relieving the symptoms of depression in humans. The illustrated compound exhibits an ED.sub.50 (tetrabenazine-induced ptosis) of 2.18 mg/kg in mice.