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发明人赵玉洁,刘建华,孙丽萍. "Method for the Synthesis of 2-Amino-7-methyl-4-(3-nitrophenyl)-5-oxo-6-phenethyl-5,6-dihydro-4H-pyrano[3,2-c]pyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 113441034 A, 授权公告日 2018-11-23.
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