发明人赵玉洁,周伟,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116157923 A, 授权公告日 2017-06-08.
发明人何建平,郑宇鹏,杨光. "Method for the Synthesis of (2E,4S)-4-Amino-5-[(3S)-2-oxo-3-pyrrolidinyl]-2-pentenoic Acid Ethyl Ester" [P]. 中国发明专利, 专利号 CN 116807585 B, 授权公告日 2020-01-06.
发明人赵玉洁,高志强,林芳. "A Process for Preparing High-Purity (2E,4S)-4-Amino-5-[(3S)-2-oxo-3-pyrrolidinyl]-2-pentenoic Acid Ethyl Ester" [P]. 中国发明专利, 专利号 CN 110199998 A, 授权公告日 2022-11-04.
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