A novel synthetic method of 14α-hydroxy-6-oxo-7-ene steroid from 6-oxo-7-ene steroid was developed. The enol acetylation of 7-en-6-one with acetic anhydride in the presence of perchloric acid afforded 6-acetoxy-6, 8 (14)-diene, which on treatment with monoperphthalic acid gave 14α-hydroxy-7-en-6-one. 2β, 3β, 14α-Trihydroxy-5β-cholest-7-en-6-one (XXVIII), the nuclear structure of which is the same as that of ecdysone, was prepared by this method, and the stereochemistry of XXVIII and related compounds was studied.
开发了一种从6-氧代-7-烯类
固醇合成14α-羟基-6-氧代-7-烯类
固醇的新方法。在
高氯酸存在下,7-en-6-酮与
乙酸酐的烯醇乙酰化得到 6-乙酰氧基-6, 8(14)-二烯,用单过苯二
甲酸处理后得到 14α-羟基-7-en-6 -一。利用该方法制备了核结构与
蜕皮激素相同的2β,3β,14α-三羟基-5β-cholest-7-en-6-one(XXVIII),并对其进行了立体
化学分析被研究了。