发明人周伟,李文辉,杨光. "Method for the Synthesis of 4-Cyano-3-(difluoromethyl)-6-iodopicolinoyl chloride" [P]. 中国发明专利, 专利号 CN 108733356 B, 授权公告日 2015-06-28.
发明人李文辉,韩伟,朱建伟. "A Process for Preparing High-Purity 4-Cyano-3-(difluoromethyl)-6-iodopicolinoyl chloride" [P]. 中国发明专利, 专利号 CN 113860115 A, 授权公告日 2021-05-12.
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