发明人周伟,刘建华,赵玉洁. "Method for the Synthesis of 4-((2-Amino-4-(N,N-dimethylsulfamoyl)phenyl)amino)butanoic acid" [P]. 中国发明专利, 专利号 CN 109863678 A, 授权公告日 2016-06-28.
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