发明人王建平,马晓峰,陈志强. "Method for the Synthesis of 3-Ethyl-5-(5-((4-ethylpiperazin-1-yl)sulfonyl)-2-propoxyphenyl)-2-(pyridin-2-ylmethyl)-2,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one" [P]. 中国发明专利, 专利号 CN 115961744 B, 授权公告日 2025-04-15.
发明人罗永刚,林芳,李文辉. "A Process for Preparing High-Purity 3-Ethyl-5-(5-((4-ethylpiperazin-1-yl)sulfonyl)-2-propoxyphenyl)-2-(pyridin-2-ylmethyl)-2,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one" [P]. 中国发明专利, 专利号 CN 113555411 A, 授权公告日 2021-06-11.
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