Fischer A B, Roberts E F, Park J H. "一种的合成方法" [P]. US Patent, US 9476069 B2, 2017-12-13.
发明人李文辉,何建平,周伟. "Method for the Synthesis of cis-(1s,3s)-3-(((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)methyl)cyclobutane-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115995955 B, 授权公告日 2021-06-09.
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