发明人王建平,张德明,周伟. "Method for the Synthesis of 6-Methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113641520 A, 授权公告日 2023-02-07.
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