发明人胡光,张德明,钱学锋. "Method for the Synthesis of 6-Benzyl 7-ethyl (S)-2,2-difluoro-6-azaspiro[3.4]Octane-6,7-dicarboxylate" [P]. 中国发明专利, 专利号 CN 113589185 A, 授权公告日 2023-06-03.
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