发明人杨光,林芳,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114634521 A, 授权公告日 2019-02-18.
O'Brien P Q, Lee S K, Roberts E F. "Method for the Synthesis of (S)-2-((tert-butoxycarbonyl)amino)-4-((1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethyl)amino)butanoic acid" [P]. US Patent, US 11761312 B2, 2021-07-28.
发明人郭海燕,徐明华,张德明. "A Process for Preparing High-Purity (S)-2-((tert-butoxycarbonyl)amino)-4-((1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethyl)amino)butanoic acid" [P]. 中国发明专利, 专利号 CN 109760075 B, 授权公告日 2024-07-16.
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