发明人王建平,钱学锋,孙丽萍. "Method for the Synthesis of (S)-2-(5-Isobutyl-2-oxopiperazin-1-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 115848075 B, 授权公告日 2019-10-09.
发明人杨光,马晓峰,陈志强. "A Process for Preparing High-Purity (S)-2-(5-Isobutyl-2-oxopiperazin-1-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 110336962 A, 授权公告日 2024-12-19.
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