发明人林芳,陈志强,黄志刚. "Method for the Synthesis of Erlotinib impurity 133" [P]. 中国发明专利, 专利号 CN 117580270 B, 授权公告日 2021-05-20.
发明人郑宇鹏,胡光,林芳. "A Process for Preparing High-Purity Erlotinib impurity 133" [P]. 中国发明专利, 专利号 CN 112007870 A, 授权公告日 2022-03-13.
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