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发明人唐晓军,钱学锋,王建平. "Method for the Synthesis of 2-(2-Cyano-3-(difluoromethyl)-5-hydroxypyridin-4-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 109416392 B, 授权公告日 2020-06-06.
发明人周伟,钱学锋,杨光. "A Process for Preparing High-Purity 2-(2-Cyano-3-(difluoromethyl)-5-hydroxypyridin-4-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 115360319 B, 授权公告日 2025-08-20.
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