(17R,S)-17-Hydroxy-14,15-secoandrost-4-en-15-yn-3-one has been shown previously to be a mechanism-based inactivator of rat liver 3 alpha-hydroxysteroid dehydrogenase. This manuscript describes the synthesis of this diastereomeric 14,15-secosteroid from [2S-(2 alpha,4a alpha,4b beta,10a beta)]-1,2,3,4a,4b,7,9,10,10a-decahydro-2,4b-dimethyl-7-oxa-2 -phenanthrenecarboxylic acid methyl ester. The separation of this diastereomeric 14,15-secosteroid into (17R)- and (17S)-17-hydroxy-14,15-secoandrost-4-en-15-yn-3-one was accomplished by HPLC separation of the (S)-1-[(4-methylphenyl)sulphonyl]-2-pyrrolidinecarbonylate derivatives an a silica column. The crystal structure of (17S)-17-hydroxy-14,15-secoandrost-4-en-15-yn-3-one was then solved by X-ray diffraction analysis to establish unambiguously the absolute configuration of the diastereomeric 14,15-secosteroid.
(17R,S)-17-羟基-14,15-割肾甾-4-
烯-15-炔-3-
酮先前已被证明是一种基于机制的机制,可以灭活大鼠肝脏的 3α-羟类
固醇脱氢酶。本文描述了该14,15-割甾体的合成路径,起始材料为[2S-(2α,4aα,4bβ,10aβ)]-1,2,3,4a,4b,7,9,10,10a-十
氢-
2,4b-二
甲基-7-
氧杂-2-
吩嗪甲酸甲酯。通过高效
液相色谱(HPLC)分离(S)-1-[(4-
甲基苯基)砜]-
2-吡咯烷酮碳酸酯衍
生物在 silica 柱上,从而将该14,15-割甾体的光学异构体分离为(17R)-和(17S)-17-羟基-14,15-割肾甾-4-
烯-15-炔-3-
酮。随后,通过X射线衍射分析确定了(17S)-17-羟基-14,15-割肾甾-4-
烯-15-炔-3-
酮的晶体结构,从而明确建立了14,15-割甾体的绝对构型。