发明人高志强,胡光,张德明. "Method for the Synthesis of (+)-O-Desmethyl-N,N-bisdesmethyl Tramadol" [P]. 中国发明专利, 专利号 CN 113152832 A, 授权公告日 2017-07-24.
发明人黄志刚,王建平,刘建华. "A Process for Preparing High-Purity (+)-O-Desmethyl-N,N-bisdesmethyl Tramadol" [P]. 中国发明专利, 专利号 CN 114905688 A, 授权公告日 2025-02-17.
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