Synthesis and evaluation of 3-substituted 17-methylmorphinan analogs as potential anticonvulsant agents
作者:Amy Hauck Newman、Kathryn Bevan、Norman Bowery、Frank C. Tortella
DOI:10.1021/jm00100a019
日期:1992.10
Dextromethorphan (1,(+)-3-methoxy-17-methylmorphinan) demonstrates anticonvulsant activity in a variety of in vitro and in vivo models of convulsive action. It is well known that 1 is metabolized to its phenolic derivative dextrorphan (2) and this metabolite is also a potent anticonvulsant. A series of (+)-3-substituted-17-methylmorphinans, which are structurally similar to 1 but are either not expected
右美沙芬(1,(+)-3-甲氧基-17-甲基吗啡喃)在多种惊厥作用的体外和体内模型中均表现出抗惊厥活性。众所周知,1被代谢为其酚类衍生物右旋芬(2),该代谢产物也是有效的抗惊厥药。制备了一系列(+)-3-取代的17-甲基吗啡喃,它们在结构上与1相似,但预期不会代谢为2,或者与1相比可能以较低的速率代谢。三个类似物5(((+)-3-氨基-17-甲基吗啡喃),14((+)-3-乙氧基-17-甲基吗啡喃)和15((+)-3-(2-丙氧基)-17-在大鼠超最大电击(MES)测试中,发现吗啡(甲基吗啡喃)具有强效的抗惊厥活性,且具有完全效力(分别为ED50 25、5.6和3.9 mg / kg,sc)。确定了这些化合物与大鼠脑和豚鼠脑亚细胞级分与[3H]右美沙芬([3H] 1)标记的受体位点以及大鼠脑中[3H]噻吩基环己基哌啶(TCP)和[3H]甘氨酸的结合力。大多数类似物从其结合位点置换[3H] 1,化合物14(IC50