Total synthesis of polymethoxyoestrane compounds. Part I. Synthesis of (±)-2,3,4-trimethoxyoestra-1,3,5(10)-trien-17β-ol and related compounds
作者:P. Narasimha Rao、E. John Jacob、Leonard R. Axelrod
DOI:10.1039/j39710002855
日期:——
By use of general procedures developed for (±)-oestrone, 2,3,4-trimethoxyoestra-1,3,5(10)-trien-17β-ol (7) has been totally synthesized from 3,4-dihydro-5,6,7-trimethoxynaphthalen-1(2H)-one (1). Metal–ammonia reduction of the intermediate 2,3,4-trimethoxyoestra-1,3,5(10),8-tetraen-17β-ol (6) under the usual conditions caused loss of the 3-methoxy-group. Reduction under carefully controlled conditions
通过使用为(±)-雌酮开发的通用程序,已经从3,4-dihydro-5完全合成了2,3,4-三甲氧基oestra-1,3,5(10)-trien-17β-ol(7) ,6,7-三甲氧基萘-1(2 H)-一(1)。在通常条件下,金属氨还原中间体2,3,4-三甲氧基oestra-1,3,5(10),8-四烯-17β-ol(6)会导致3-甲氧基的损失。为了得到三甲氧基雌三烯酚(7),必须在严格控制的条件下进行还原。已经制备了一系列(±)-2,3,4-三甲氧基雌酮的立体异构体,用于评估生物活性。