发明人李文辉,何建平,陈志强. "Method for the Synthesis of 2-(2-(Furan-2-yl)-4-oxo-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 113043734 B, 授权公告日 2019-11-09.
Schröder R, Mueller T, Stevens L M. "A Process for Preparing High-Purity 2-(2-(Furan-2-yl)-4-oxo-6,7-dihydropyrazolo[1,5-a]pyrazin-5(4H)-yl)acetic acid" [P]. US Patent, US 9730020 B2, 2024-08-04.
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