发明人王建平,杨光,唐晓军. "一种艾多沙班杂质131的合成方法" [P]. 中国发明专利, 专利号 CN 112069452 A, 授权公告日 2022-04-14.
发明人冯建国,陈志强,马晓峰. "Method for the Synthesis of Edoxaban impurity 131" [P]. 中国发明专利, 专利号 CN 109682945 A, 授权公告日 2021-04-27.
Stevens L M, Yamamoto T, Brown S R. "A Process for Preparing High-Purity Edoxaban impurity 131" [P]. US Patent, US 9801089 B2, 2022-01-28.
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