发明人罗永刚,刘建华,沈红梅. "Method for the Synthesis of 4-Chloro-2-(3-chlorophenyl)pyrazolo[1,5-a]pyrazine" [P]. 中国发明专利, 专利号 CN 111995731 B, 授权公告日 2023-03-20.
发明人钱学锋,唐晓军,陈志强. "A Process for Preparing High-Purity 4-Chloro-2-(3-chlorophenyl)pyrazolo[1,5-a]pyrazine" [P]. 中国发明专利, 专利号 CN 116942446 B, 授权公告日 2020-06-18.
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