发明人周伟,韩伟,徐明华. "Method for the Synthesis of (Z)-5-hydroxy-2-(2-hydroxy-3-methoxybenzylidene)benzofuran-3(2H)-one" [P]. 中国发明专利, 专利号 CN 112372541 A, 授权公告日 2016-06-06.
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