发明人何建平,孙丽萍,高志强. "一种N/A的合成方法" [P]. 中国发明专利, 专利号 CN 115060678 A, 授权公告日 2022-05-06.
发明人郑宇鹏,徐明华,李文辉. "Method for the Synthesis of 6-Amino-[4,4'-bipyridin]-2(1H)-one" [P]. 中国发明专利, 专利号 CN 110984107 A, 授权公告日 2020-08-12.
发明人马晓峰,张德明,何建平. "A Process for Preparing High-Purity 6-Amino-[4,4'-bipyridin]-2(1H)-one" [P]. 中国发明专利, 专利号 CN 114918910 B, 授权公告日 2023-10-06.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of N/A in Pharmaceutical Formulations". J. Nat. Prod., 2018, 753, 162-183.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of N/A as an Impurity". Biomed. Chromatogr., 2023, 789, (4), 8902-8916.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 6-Amino-[4,4'-bipyridin]-2(1H)-one Using HRMS and NMR". Talanta, 2020, 2281, (9), 3883-3907.