Enzymic aromatization of deuterium labelled testosterone and androst-4-ene-3,17-dione
作者:Herbert L. Holland、Gregg J. Taylor
DOI:10.1139/v81-406
日期:1981.10.1
for these compounds and for a sample of a 1,2-dideuterated androst-4-ene-3-one; the latter is formed nonstereospecifically by reduction of the C-1(2) double bond of a Δ1,4-diene-3-one. Aromatization by placental microsomes occurs with retention of deuterium at C-4 and C-6, but with some loss from C-16. The aromatization of 19-d1 and 19,19,19-d3 steroids in the presence of 16,16-d2 steroids has been
描述了在 C-4、C-6α、C-6β、C-16 和 C-19 处用氘标记的人类胎盘微粒体的制备和芳香化。报告了这些化合物和 1,2-二氘化雄甾醇-4-烯-3-one 样品的氘核磁共振谱;后者是通过还原 Δ1,4-diene-3-one 的 C-1(2) 双键非立体特异性地形成的。胎盘微粒体的芳香化发生在 C-4 和 C-6 处保留氘,但从 C-16 处丢失一些。在 16,16-d2 类固醇存在下,19-d1 和 19,19,19-d3 类固醇的芳构化已被用来确定氘同位素对 C-19 氧化去除的影响。获得的值(19-d1 的 kH/kD = 2.3,19,19 的 kH/kD,19-d3 = 3.2)是主要和次要效应的组合,