A novel efficient method was proposed for the synthesis of enantiopure precursors of taxane-containing cytostatics, i.e., methyl esters of (2R,3S)- and (2S,3R)-N-benzoylphenylisoserine and similar taxoid esters. The method is based on the regio- and stereoselective hydrobromolysis of the corresponding trans-β-phenyl glycidate enatiomers, consecutive reactions of O-acylcarbamoylation of the obtained 3-bromohydrins, intramolecular cyclization to 4-phenyloxazolidin-2-one-5-carboxylic acid derivatives, and oxazolidinone ring opening.
                                    提出了一种新的高效方法,用于合成含类
固醇的对映体前体,即 (2R,3S)- 和 (2S,3R)-N- 苯甲酰基苯基异
丝氨酸的甲酯以及类似的类
固醇酯。该方法基于对相应的反式-β-苯基甘
氨酸对映体进行区域和立体选择性
氢溴酸分解,对得到的 3-
溴烷烃进行 O-酰基
氨基甲酰化的连续反应,分子内环化为 
4-苯基恶唑啉-2-酮-5-
羧酸衍
生物,以及
恶唑啉酮开环。