发明人孙丽萍,周伟,李文辉. "Method for the Synthesis of (S)-8-(tert-butoxycarbonyl)-3,3-difluoro-8-azaspiro[4.5]Decane-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114593646 B, 授权公告日 2019-06-18.
发明人林芳,韩伟,郑宇鹏. "A Process for Preparing High-Purity (S)-8-(tert-butoxycarbonyl)-3,3-difluoro-8-azaspiro[4.5]Decane-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114598059 A, 授权公告日 2024-10-16.
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