发明人马晓峰,徐明华,杨光. "Method for the Synthesis of [(4-Methoxyphenyl)(2-oxo-2-pyrrolidin-1-ylethyl)-amino]acetic acid" [P]. 中国发明专利, 专利号 CN 112071294 A, 授权公告日 2020-01-01.
发明人张德明,何建平,杨光. "A Process for Preparing High-Purity [(4-Methoxyphenyl)(2-oxo-2-pyrrolidin-1-ylethyl)-amino]acetic acid" [P]. 中国发明专利, 专利号 CN 108136705 B, 授权公告日 2015-02-16.
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