发明人黄志刚,刘建华,张德明. "Method for the Synthesis of O2-tert-butyl O5-ethyl 5-fluoro-2,7-diazaspiro[3.4]octane-2,5-dicarboxylate" [P]. 中国发明专利, 专利号 CN 108126476 A, 授权公告日 2023-02-19.
发明人刘建华,沈红梅,何建平. "A Process for Preparing High-Purity O2-tert-butyl O5-ethyl 5-fluoro-2,7-diazaspiro[3.4]octane-2,5-dicarboxylate" [P]. 中国发明专利, 专利号 CN 109579237 A, 授权公告日 2019-11-14.
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