Synthesis of 11.beta.,13.beta.- and 13.beta.,16.beta.-propano steroids: probes of hormonal activity
作者:Colin G. Pitt、Douglas H. Rector、Clarence E. Cook、Mansukh C. Wani
DOI:10.1021/jm00194a016
日期:1979.8
Syntheses of 11 beta,13 beta- and 13 beta,16 beta-propano derivatives of 17 alpha-ethynyl-17 beta-hydroxygon-4-en-3-one are described. The 13 beta,16 beta bridge was constructed by intramolecular alkylation of the C-16 enolate anion from 3-methoxy-13 beta-[3'-(tosyloxy)propyl]gona-3,5-dien-17-one, the latter being obtained via Birch reduction of both aryl groups of 17 beta-hydroxy-3-methoxy-13 bet
描述了17α-乙炔基-17β-羟基gon-4-en-3-one的11β,13β-和13β,16β-丙烷衍生物的合成。通过由3-甲氧基-13β-[3'-(甲苯磺酰氧基丙基)丙基] gona-3,5-dien-17-one中的C-3烯醇式阴离子的C-16烯酸酯阴离子进行分子内烷基化构建13 beta,16 beta桥通过Birch还原17个β-羟基-3-甲氧基-13β-(3'-苯氧基丙基)gona-1,3,5(10),8-四烯(1)的两个芳基而获得。11 beta,13 beta桥是通过Prins环环化17 beta-乙酰氧基-3-甲氧基-13 beta-(3'-氧丙基)gona-1,3,5(10),9(11)-丁烯而构建的通过桦木还原仅使1的侧链芳基获得。