发明人杨光,刘建华,王建平. "Method for the Synthesis of Tibolone impurity 1" [P]. 中国发明专利, 专利号 CN 111472570 A, 授权公告日 2016-12-24.
发明人李文辉,马晓峰,林芳. "A Process for Preparing High-Purity Tibolone impurity 1" [P]. 中国发明专利, 专利号 CN 109569394 A, 授权公告日 2015-07-03.
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