发明人马晓峰,王建平,陈志强. "Method for the Synthesis of 5-(N-butyl-N-ethylsulfamoyl)-3-methylbenzofuran-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112875904 A, 授权公告日 2019-07-07.
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