3,4-Methylenedioxyphenoxy-alkyl diketones and keto-esters
申请人:Sterling Drug Inc.
公开号:US03933837A1
公开(公告)日:1976-01-20
Aryloxyalkyl diketones and keto-esters, having pesticidal and anti-viral activity, are prepared from an aryloxyalkyl halide and an alkali metal enolate salt of a diketone or keto-ester.
A series of N-acyl-1,2,3,4-tetrahydroisoquinoline derivatives were synthesized and evaluated for their bradycardic activities in isolated guinea pig right atria and in urethane-anesthetized rats. These efforts resulted in identification of the compound 8a, which exhibits potent bradycardic activity with minimal influence on mean blood pressure in urethane-anesthetized rats. Oral administration of compound 8a to conscious rats revealed increased potency and prolonged duration of action when compared to Zatebradine. (C) 2004 Elsevier Ltd. All rights reserved.