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发明人李文辉,唐晓军,王建平. "Method for the Synthesis of 2-(2,5-Dioxohexahydroimidazo[4,5-d]imidazol-1(2H)-yl)-3-methylbutanoic acid" [P]. 中国发明专利, 专利号 CN 116372213 B, 授权公告日 2022-04-11.
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