Synthesis of Deuterium-Labeled 16.ALPHA., 19-Dihydroxy C19 Steroids as Internal Standards for Gas Chromatography-Mass Spectrometry.
作者:Mitsuteru NUMAZAWA、Satoshi SATOH、Yoshio OSAWA
DOI:10.1248/cpb.40.2759
日期:——
,17-dione (14) and [7,7,16 beta-2H3]3 beta,16 alpha,19-trihydroxyandrost-5-en-17-one (16), with high isotopic purity, respectively, were synthesized from unlabeled 3 beta-(tert-butyldimethylsiloxy)-androst-5-ene-17 beta-yl acetate (1). The deuterium introduction at C-7 was carried out by reductive deoxygenation of the 7-keto compound 3 with dichloroaluminum deuteride and that at C-2 beta and/or C-16
[2 beta,7,7,16 beta-2H4] 16 alpha,19-二羟基雄烷-4-烯-3,17-二酮(14)和[7,7,16 beta-2H3] 3 beta,16 alpha,19从未标记的3β-(叔丁基二甲基甲硅烷氧基)-androst-5-ene-17β-乙酸乙烯酯(1)合成具有高同位素纯度的-trihydroxyandrost-5-en-17-one(16)。通过7-酮化合物3与氘代二氯铝的还原性脱氧以及C-2β和/或C-16β的16-溴-17-酮11的碱水解,在C-7处引入氘。或在D2O和吡啶中加入NaOD 12。通过五步序列从化合物1获得的[7,7-2H2] 3β-羟基雄烷-5-烯-17-一(6),通过八步或七步转化为化合物14或16顺序。