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发明人杨光,高志强,何建平. "Method for the Synthesis of 2-(2-(Benzo[d][1,3]dioxol-5-yl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl)acetonitrile" [P]. 中国发明专利, 专利号 CN 110820323 A, 授权公告日 2016-04-14.
发明人杨光,胡光,钱学锋. "A Process for Preparing High-Purity 2-(2-(Benzo[d][1,3]dioxol-5-yl)-4-oxopyrazolo[1,5-a]pyrazin-5(4H)-yl)acetonitrile" [P]. 中国发明专利, 专利号 CN 114858796 B, 授权公告日 2023-07-24.
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