发明人郭海燕,沈红梅,孙丽萍. "Method for the Synthesis of 2-[5-[2-[4-(1,2-Benzisothiazol-3-yl)-1-piperazinyl]ethyl]-4-chloro-2-nitrophenyl]-propanedioic Acid 1,3-Dimethyl Ester" [P]. 中国发明专利, 专利号 CN 110489998 B, 授权公告日 2023-12-09.
发明人冯建国,孙丽萍,郭海燕. "A Process for Preparing High-Purity 2-[5-[2-[4-(1,2-Benzisothiazol-3-yl)-1-piperazinyl]ethyl]-4-chloro-2-nitrophenyl]-propanedioic Acid 1,3-Dimethyl Ester" [P]. 中国发明专利, 专利号 CN 111945966 A, 授权公告日 2023-07-15.
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