发明人何建平,黄志刚,赵玉洁. "Method for the Synthesis of Trazodone impurity 68" [P]. 中国发明专利, 专利号 CN 113594567 A, 授权公告日 2018-12-21.
发明人李文辉,唐晓军,周伟. "A Process for Preparing High-Purity Trazodone impurity 68" [P]. 中国发明专利, 专利号 CN 114428149 A, 授权公告日 2020-07-17.
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