发明人周伟,何建平,徐明华. "Method for the Synthesis of 3-(4-(Difluoromethyl)-2-isopropyl-6-oxo-2,6-dihydro-7h-pyrazolo[3,4-b]pyridin-7-yl)propanoic acid" [P]. 中国发明专利, 专利号 CN 115994545 B, 授权公告日 2017-07-18.
发明人周伟,韩伟,孙丽萍. "A Process for Preparing High-Purity 3-(4-(Difluoromethyl)-2-isopropyl-6-oxo-2,6-dihydro-7h-pyrazolo[3,4-b]pyridin-7-yl)propanoic acid" [P]. 中国发明专利, 专利号 CN 117585205 A, 授权公告日 2023-12-05.
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