发明人徐明华,张德明,钱学锋. "Method for the Synthesis of (S)-2-Oxoimidazolidine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112313574 B, 授权公告日 2022-10-14.
发明人张德明,高志强,胡光. "A Process for Preparing High-Purity (S)-2-Oxoimidazolidine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114985537 A, 授权公告日 2016-02-20.
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