发明人郭海燕,孙丽萍,李文辉. "Method for the Synthesis of 8a-Methyl-5-oxo-hexahydro-[1,3]thiazolo[2,3-c]thiomorpholine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116720161 A, 授权公告日 2016-12-25.
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