发明人马晓峰,李文辉,赵玉洁. "Method for the Synthesis of 4-((4-(N-(2,6-Dimethoxypyrimidin-4-yl)sulfamoyl)phenyl)amino)-4-oxobut-2-enoic acid" [P]. 中国发明专利, 专利号 CN 109100971 A, 授权公告日 2017-09-14.
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