发明人马晓峰,冯建国,王建平. "Method for the Synthesis of 4-(2-Amino-4-(4-chlorophenyl)-7-oxo-5H-pyrrolo[3,4-d]pyrimidin-6(7H)-yl)butanoic acid" [P]. 中国发明专利, 专利号 CN 108217991 A, 授权公告日 2017-03-20.
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