发明人王建平,张德明,徐明华. "Method for the Synthesis of 2-tert-Butyl 8-ethyl 6-thia-2-azaspiro[3.4]octane-2,8-dicarboxylate" [P]. 中国发明专利, 专利号 CN 112537243 A, 授权公告日 2021-04-24.
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