发明人赵玉洁,冯建国,郭海燕. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108357191 A, 授权公告日 2021-02-24.
发明人孙丽萍,唐晓军,张德明. "Method for the Synthesis of Tert-butyl 2-(chloromethyl)-4-oxo-7,9-dihydro-4H-pyrrolo[3',4':3,4]pyrazolo[1,5-a]pyrimidine-8(6H)-carboxylate" [P]. 中国发明专利, 专利号 CN 115794640 A, 授权公告日 2018-01-13.
发明人韩伟,王建平,胡光. "A Process for Preparing High-Purity Tert-butyl 2-(chloromethyl)-4-oxo-7,9-dihydro-4H-pyrrolo[3',4':3,4]pyrazolo[1,5-a]pyrimidine-8(6H)-carboxylate" [P]. 中国发明专利, 专利号 CN 112648241 B, 授权公告日 2024-02-15.
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