中文摘要：

乙醇 3-alkyl-4-hydroxy-2-thioxothiazolidine-4-carboxylates 在 DMF 面对无水的钾磷酸盐与碳二硫化物和乙醇 3-bromo-2-oxopropanoate 从相应的主要的胺的反应在优秀收益被准备在在 1 h 以内的房间温度。结构高度， functionalized 产品分光镜地被支持(红外， 1H NMR， 13C NMR， EIMS ) 并且由元素的分析。为环合的如此的类型的嘴巧的机制被建议。

英文摘要：

Ethyl 3-alkyl-4-hydroxy-2-thioxothiazolidine-4-carboxylates were prepared in excellent yields from the reaction of corresponding primary amines with carbon disulfide and ethyl 3-bromo-2-oxopropanoate in the presence of anhydrous potassium phosphate in DMF at room temperature within 1 h. The structures of the highly functionalized products were corroborated spectroscopically （IR, ^1H NMR, ^13C NMR, EI-MS） and by elemental analyses. A plausible mechanism for such type of cyclization was proposed.