发明人王建平,冯建国,李文辉. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114452273 A, 授权公告日 2017-05-11.
发明人韩伟,张德明,冯建国. "Method for the Synthesis of 5-Benzyl 6-methyl (3S,6S)-1,1-difluoro-5-azaspiro[2.4]Heptane-5,6-dicarboxylate" [P]. 中国发明专利, 专利号 CN 113431235 A, 授权公告日 2024-05-04.
发明人周伟,张德明,韩伟. "A Process for Preparing High-Purity 5-Benzyl 6-methyl (3S,6S)-1,1-difluoro-5-azaspiro[2.4]Heptane-5,6-dicarboxylate" [P]. 中国发明专利, 专利号 CN 108226296 B, 授权公告日 2023-08-15.
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