发明人何建平,周伟,林芳. "Method for the Synthesis of 799262-17-2
5-Methyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylic acid
MFCD04113976" [P]. 中国发明专利, 专利号 CN 109411014 A, 授权公告日 2021-10-28.
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