发明授权
US4568491A Process for the preparation of cholesterol derivatives and novel intermediates therefor 失效
制备胆固醇衍生物及其新型中间体的方法

Process for the preparation of cholesterol derivatives and novel
intermediates therefor
摘要:
The invention is concerned with a process for the preparation of 1 hydrogen or hydroxy cholesterol derivatives and intermediates therefor. The compounds of the present invention are useful as intermediates in the preparation of 24,25-dihydroxy and 1.alpha., 24,25-trihydroxycholecalciferol.
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