New 5-HT3 (Serotonin-3) Receptor Antagonists. IV. Synthesis and Structure-Activity Relationships of Azabicycloalkaneacetamide Derivatives.
作者:Masayuki KATO、Kiyotaka ITO、Shigetaka NISHINO、Hisashi YAMAKUNI、Hisashi TAKASUGI
DOI:10.1248/cpb.43.1351
日期:——
The synthesis and structure-activity relationships of a series of new azabicycloalkanes as 5-HT3 (serotonin-3) receptor antagonists are described. Our study on the azabicycloalkaneacetamide derivatives showed that 2,3-dihydroindole as the aromatic ring moiety afforded potent 5-HT3 receptor antagonist activity, as judged by blockade of bradycardia induced by i.v. injection of 2-methylserotonin in anesthetized
描述了一系列新型的氮杂双环烷作为5-HT3(5-羟色胺-3)受体拮抗剂的合成与构效关系。我们对氮杂双环烷乙酰胺衍生物的研究表明,由2,3-二氢吲哚作为芳香环部分提供了有效的5-HT3受体拮抗剂活性,这是通过在麻醉的大鼠中静脉注射2-甲基5-羟色胺诱导的心动过缓而判断的。7-氮杂吲哚作为芳族部分提供弱的5-HT 3受体拮抗剂活性。这项研究中最好的5-HT3拮抗剂是3,3-二乙基-(9k)和3,3-二甲基-2,3-二氢-1-[[(8-甲基-8-氮杂双环)[3.2.1]]。辛基-3-羟基)乙酰基1H-吲哚(9d),其效力比恩丹西酮(1)高约10倍。