发明人罗永刚,冯建国,郭海燕. "Method for the Synthesis of 2-[4-[(Methylsulfonyl)amino]phenoxy]-acetic Acid Methyl Ester" [P]. 中国发明专利, 专利号 CN 111709915 A, 授权公告日 2022-12-26.
发明人徐明华,钱学锋,高志强. "A Process for Preparing High-Purity 2-[4-[(Methylsulfonyl)amino]phenoxy]-acetic Acid Methyl Ester" [P]. 中国发明专利, 专利号 CN 113395289 B, 授权公告日 2021-01-14.
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