发明人孙丽萍,刘建华,罗永刚. "Method for the Synthesis of Methyl 6-[(2-chlorophenyl)sulfanyl]-5-cyano-2-methylpyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 113815456 A, 授权公告日 2023-04-19.
发明人周伟,孙丽萍,郭海燕. "A Process for Preparing High-Purity Methyl 6-[(2-chlorophenyl)sulfanyl]-5-cyano-2-methylpyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114234037 A, 授权公告日 2019-07-03.
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