发明人张德明,刘建华,黄志刚. "Method for the Synthesis of (2S)-2-(2-oxoethyl)-1-Pyrrolidinecarboxylic acid 1,1-dimethylethyl ester
198493-30-0" [P]. 中国发明专利, 专利号 CN 109937250 A, 授权公告日 2016-06-14.
发明人赵玉洁,何建平,罗永刚. "A Process for Preparing High-Purity (2S)-2-(2-oxoethyl)-1-Pyrrolidinecarboxylic acid 1,1-dimethylethyl ester
198493-30-0" [P]. 中国发明专利, 专利号 CN 111666482 A, 授权公告日 2017-06-21.
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