发明人孙丽萍,马晓峰,罗永刚. "Method for the Synthesis of 289-56-5
3-methyl-5-(methylsulfanyl)-2,4-dihydro-7h-pyrazolo[4,3-d]pyrimidin-7-one
AR-1F4319" [P]. 中国发明专利, 专利号 CN 109209841 B, 授权公告日 2016-03-22.
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