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发明人李文辉,罗永刚,郭海燕. "Method for the Synthesis of 6,6'-((4-Methoxyphenyl)methylene)bis(5-hydroxy-2-(hydroxymethyl)-4H-pyran-4-one)" [P]. 中国发明专利, 专利号 CN 115859762 A, 授权公告日 2015-12-05.
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