发明人高志强,刘建华,王建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109420478 A, 授权公告日 2018-02-27.
发明人黄志刚,张德明,杨光. "Method for the Synthesis of Ethyl 4-{[3-(1H-imidazol-1-yl)propyl]amino}-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 112505923 A, 授权公告日 2023-04-06.
发明人黄志刚,张德明,钱学锋. "A Process for Preparing High-Purity Ethyl 4-{[3-(1H-imidazol-1-yl)propyl]amino}-1-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 115088801 A, 授权公告日 2019-03-05.
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