Preparation of 3-ketodesogestrel metabolites by microbial transformation and chemical synthesis
作者:Helmut Groh、Renate Schön、Michael Ritzau、Helmut Kasch、Katrin Undisz、Gerhard Hobe
DOI:10.1016/s0039-128x(97)00014-7
日期:1997.5
-18,19-dinor-5 beta, 17 alpha-pregnan-20-yne-3 alpha, 17 beta-diol, respectively. The epimeric compound 13-ethyl-11-methylene-18,19-dinor-5 beta, 17 alpha-pregnan-20-yne-3 beta, 17 beta-diol was obtained by chemical reduction of the 3-oxo compound. Mycobacterium smegmatis converted KDG to metabolites of the 5 alpha H-series: 13-ethyl-17 beta-hydroxy-11-methylene-18,19-dinor-5 alpha, 17 alpha-pregnan-20-yn-3-one
17 alpha-pregnan-20-yn-3-one, 13-ethyl-11-methylene-18,19-dinor-5 alpha, 17 alpha-pregnan-20-yne-3 alpha, 17 beta-diol 和 13-ethyl -11-methylene-18,19-dinor-5 alpha, 17 alpha-pregnan-20-yne-3 beta, 17 beta-diol。得到KDG 13-乙基-11-亚甲基-18,19-dinor-17 alpha-pregna-1,3,5(10)-trien-20-yne-3,17 beta-diol的环A-芳香化类似物通过微生物 1- 与玫瑰色红球菌脱氢。此外,对上面列出的微生物获得的 KDG 代谢物进行了化学合成。这些包括 Birch 还原,在吡啶水溶液和甲醇中用硼氢化钠还原 KDG,在四氢呋喃中用选择化钾还原