发明人张德明,徐明华,周伟. "Method for the Synthesis of 2-(Difluoromethyl)-4-nitropyridine-5-acetic acid" [P]. 中国发明专利, 专利号 CN 113915044 B, 授权公告日 2024-12-09.
发明人唐晓军,胡光,何建平. "A Process for Preparing High-Purity 2-(Difluoromethyl)-4-nitropyridine-5-acetic acid" [P]. 中国发明专利, 专利号 CN 112097120 B, 授权公告日 2022-12-25.
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