发明人孙丽萍,郭海燕,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117537089 A, 授权公告日 2018-11-04.
发明人韩伟,陈志强,钱学锋. "Method for the Synthesis of Ethyl 2-({[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}methylidene)-4,4,4-trifluoro-3-oxobutanoate" [P]. 中国发明专利, 专利号 CN 113321221 B, 授权公告日 2018-08-12.
发明人赵玉洁,郑宇鹏,朱建伟. "A Process for Preparing High-Purity Ethyl 2-({[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}methylidene)-4,4,4-trifluoro-3-oxobutanoate" [P]. 中国发明专利, 专利号 CN 114243781 A, 授权公告日 2020-01-18.
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