发明人李文辉,唐晓军,钱学锋. "Method for the Synthesis of 7-chloro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110854905 B, 授权公告日 2023-04-18.
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