Octahydropyrazino[2',3':3,4]pyrido[1,2-a]indoles. A new class of potent antihypertensive agents
作者:Ivo Jirkovsky、George Santroch、Reinhardt Baudy、George Oshiro
DOI:10.1021/jm00385a022
日期:1987.2
Simplifications and modifications of the vincamine molecule led to the discovery of antihypertensive 1,2,3,4,4a,5,6,12b-octahydro-12-methylpyrazino[2',3':3,4]pyr ido[1,2-a] indoles. Stereoselective syntheses of both 4a,12b-cis and 4a,12b-trans isomers represent new annulation strategies for the construction of fused piperazines. Compounds of the trans series were at least 10 times more potent than
长春胺分子的简化和修饰导致发现降压的1,2,3,4,4a,5,6,12b-八氢-12-甲基吡嗪并[2',3':3,4] pyr ido [1, 2-a]吲哚。4a,12b-顺式和4a,12b-反式异构体的立体选择性合成代表了构建稠合哌嗪的新环空策略。反式系列化合物的效力至少是相应的顺式异构体的10倍。降压活性和α1-肾上腺素受体阻断特性在同时引入4-甲基乙基和1-烷基取代基时达到峰值。化合物15j(AY-28,228; atiprosin),(4a,12b-trans)-1-乙基-1,2,3,4,4a,5,6,12b-八氢-12-甲基-4-(1-甲基乙基)选择吡唑并[2',3':3,4]吡啶并[1,2-a]吲哚进行详细的临床前评估。