发明人朱建伟,马晓峰,郭海燕. "Method for the Synthesis of 2-({[4-(acetylamino)phenyl]sulfonyl}amino)-4-(methylthio)butanoic acid" [P]. 中国发明专利, 专利号 CN 115515159 A, 授权公告日 2017-07-08.
发明人王建平,刘建华,罗永刚. "A Process for Preparing High-Purity 2-({[4-(acetylamino)phenyl]sulfonyl}amino)-4-(methylthio)butanoic acid" [P]. 中国发明专利, 专利号 CN 117288689 B, 授权公告日 2015-05-07.
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