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研究了不同的胆甾醛和（３－甲基－２－氧丁基）三苯基溴化胂在不同溶剂体系中的固－液相转移Ｗｉｔｔｉｇ反应，使此反应在甾体支链的建造中得到了成功的应用．
The solid-liquid phase transfer Wittig reaction of different cholestral and (3-methyl-2-oxobutyl) triphenylphosphoramidites in different solvent systems was studied, making the reaction in steroid-branched construction In the successful application.