发明人赵玉洁,李文辉,杨光. "Method for the Synthesis of 4-((4,5-Dimethoxy-3-oxo-1,3-dihydroisobenzofuran-1-yl)amino)benzoic acid" [P]. 中国发明专利, 专利号 CN 113187748 A, 授权公告日 2017-03-06.
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