发明人徐明华,马晓峰,朱建伟. "Method for the Synthesis of 4-Amino-3-(difluoromethoxy)benzoic acid" [P]. 中国发明专利, 专利号 CN 109645999 A, 授权公告日 2020-07-17.
发明人周伟,胡光,徐明华. "A Process for Preparing High-Purity 4-Amino-3-(difluoromethoxy)benzoic acid" [P]. 中国发明专利, 专利号 CN 108426779 B, 授权公告日 2024-06-20.
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