发明人赵玉洁,孙丽萍,韩伟. "一种艾多沙班杂质68的合成方法" [P]. 中国发明专利, 专利号 CN 115465623 A, 授权公告日 2017-09-28.
发明人唐晓军,周伟,郑宇鹏. "Method for the Synthesis of Edoxaban Impurity 68" [P]. 中国发明专利, 专利号 CN 114308947 A, 授权公告日 2017-12-08.
发明人罗永刚,沈红梅,刘建华. "A Process for Preparing High-Purity Edoxaban Impurity 68" [P]. 中国发明专利, 专利号 CN 115352675 B, 授权公告日 2020-02-25.
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