Synthesis and biological activity of cis-(3aR)-(-)-2,3,3a,4,5,9b-hexahydro-3-propyl-1H-benz[e]indole-9-carboxamide: A potent and selective 5-HT1A receptor agonist with good oral availability
作者:Chiu Hong Lin、Susanne R. Haadsma-Svensson、Gillian Phillips、Robert B. McCall、Montford F. Piercey、Martin W. Smith、Kjell Svensson、Arvid Carlsson、Connie G. Chidester、Phillip F. Von Voigtlander
DOI:10.1021/jm00067a018
日期:1993.7
The synthesis and biological activity of cis-(3aR)-(-)-2,3,3a,4,5,9b- hexahydro-3-propyl-1H-benz[e]indole-9-carboxamide ((-)-3a), U93385, is described. The cis racemate and its enantiomer as well as the corresponding trans enantiomers were also synthesized and evaluated. The synthesis of these analogs was achieved via either a four-step conversion of the 9-hydroxy precursor into 9-carboxamide or an
顺式(3aR)-(-)-2,3,3a,4,5,9b-六氢-3-丙基-1H-苯并[e]吲哚-9-羧酰胺((-)-在图3a)中描述了U93385。还合成并评估了顺式外消旋体及其对映体以及相应的反式对映体。这些类似物的合成是通过将9-羟基前体四步转化为9-羧酰胺或使用(R)-α-甲基苄基作为手性助剂的替代合成来实现的。发现顺式消旋体(+/-)-3a是选择性和有效的5-HT1A受体激动剂,其活性存在于顺式-(3aR)-对映体(-)-3a中。顺式(3aS)-对映体(+)-3a和反式-(3aR)-对映体(-)-3b显示部分5-HT1A激动剂活性,而其他反式-(3aS)-对映体(+)-3b没有显示活动。对映体(-)-3a在体外和体内生化/行为分析中均具有选择性。该化合物可有效降低小鼠的直肠温度,降低大鼠中脑血清素能神经元的放电速度,并抑制大鼠脑5-HT的合成。该化合物还减少了麻醉猫的交感神经放电和血压,