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发明人徐明华,李文辉,马晓峰. "Method for the Synthesis of 3-(4-Oxo-1-phenyl-4,5-dihydro-1h-pyrazolo[3,4-d]pyrimidin-6-yl)propanoic acid" [P]. 中国发明专利, 专利号 CN 108456295 A, 授权公告日 2022-11-18.
发明人高志强,陈志强,钱学锋. "A Process for Preparing High-Purity 3-(4-Oxo-1-phenyl-4,5-dihydro-1h-pyrazolo[3,4-d]pyrimidin-6-yl)propanoic acid" [P]. 中国发明专利, 专利号 CN 116964175 A, 授权公告日 2025-03-06.
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