发明人林芳,赵玉洁,陈志强. "Method for the Synthesis of Ethyl 2-amino-7-hydroxy-4-(4-nitrophenyl)-4H-chromene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110800900 B, 授权公告日 2021-01-25.
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