发明人赵玉洁,唐晓军,郑宇鹏. "Method for the Synthesis of Vildagliptin Impurity 39" [P]. 中国发明专利, 专利号 CN 111237025 A, 授权公告日 2022-06-17.
Rossi M, Mueller T C, Johansson L. "A Process for Preparing High-Purity Vildagliptin Impurity 39" [P]. European Patent, EP 3075870 A1, 2019-05-18.
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