Johansson L, Rossi M, Martínez F. "一种ethyl 3-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine-6-carboxylate的合成方法" [P]. European Patent, EP 3848569 A1, 2015-05-22.
发明人刘建华,沈红梅,罗永刚. "Method for the Synthesis of ethyl 3-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 112437001 B, 授权公告日 2015-08-18.
参考文献 Literature
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