发明人何建平,唐晓军,罗永刚. "Method for the Synthesis of 1-methyl-1H-pyrazolo[1,5-a]imidazole-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110861707 A, 授权公告日 2023-04-28.
发明人韩伟,林芳,郑宇鹏. "A Process for Preparing High-Purity 1-methyl-1H-pyrazolo[1,5-a]imidazole-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112736269 B, 授权公告日 2021-06-20.
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