发明人郑宇鹏,韩伟,朱建伟. "Method for the Synthesis of ethyl 5-(chlorosulfonyl)-2-(difluoromethyl)pyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109331285 B, 授权公告日 2023-02-03.
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