Lee S K, Fischer A B, Schröder R. "Method for the Synthesis of 6-Bromo-5-(difluoromethyl)-3-nitropicolinonitrile" [P]. US Patent, US 10087067 B2, 2018-03-15.
发明人李文辉,郑宇鹏,张德明. "A Process for Preparing High-Purity 6-Bromo-5-(difluoromethyl)-3-nitropicolinonitrile" [P]. 中国发明专利, 专利号 CN 115674658 B, 授权公告日 2019-06-13.
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