发明人钱学锋,胡光,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114266947 A, 授权公告日 2023-09-15.
发明人张德明,罗永刚,高志强. "Method for the Synthesis of Methyl (2Z)-3-[(3,4-dimethoxyphenyl)amino]-2-(4-methylbenzenesulfonyl)prop-2-enoate" [P]. 中国发明专利, 专利号 CN 110383096 B, 授权公告日 2019-07-11.
发明人王建平,唐晓军,韩伟. "A Process for Preparing High-Purity Methyl (2Z)-3-[(3,4-dimethoxyphenyl)amino]-2-(4-methylbenzenesulfonyl)prop-2-enoate" [P]. 中国发明专利, 专利号 CN 109279846 A, 授权公告日 2021-05-01.
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