发明人罗永刚,高志强,唐晓军. "一种奥贝胆酸杂质2的合成方法" [P]. 中国发明专利, 专利号 CN 114569724 A, 授权公告日 2022-07-24.
发明人郑宇鹏,赵玉洁,胡光. "Method for the Synthesis of Obeticholic Acid Impurity 2" [P]. 中国发明专利, 专利号 CN 110084767 B, 授权公告日 2022-09-11.
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