发明人刘建华,唐晓军,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117420087 A, 授权公告日 2023-01-03.
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发明人罗永刚,黄志刚,孙丽萍. "A Process for Preparing High-Purity 2-(3-(Trifluoromethyl)phenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 112574915 A, 授权公告日 2021-04-06.
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