发明人罗永刚,徐明华,朱建伟. "Method for the Synthesis of 3,3-Dimethyl-1-{3-[3-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidin-7-yl]phenyl}azetidin-2-one" [P]. 中国发明专利, 专利号 CN 113960855 A, 授权公告日 2020-07-10.
发明人王建平,韩伟,周伟. "A Process for Preparing High-Purity 3,3-Dimethyl-1-{3-[3-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidin-7-yl]phenyl}azetidin-2-one" [P]. 中国发明专利, 专利号 CN 114919718 B, 授权公告日 2020-02-22.
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