发明人杨光,韩伟,高志强. "Method for the Synthesis of 4-Amino-6-(difluoromethyl)-5-methylpyridine-3-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 112027733 B, 授权公告日 2016-08-10.
发明人杨光,李文辉,钱学锋. "A Process for Preparing High-Purity 4-Amino-6-(difluoromethyl)-5-methylpyridine-3-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 108275681 B, 授权公告日 2019-09-01.
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