发明人罗永刚,郭海燕,黄志刚. "一种达非那新杂质N1的合成方法" [P]. 中国发明专利, 专利号 CN 112909222 A, 授权公告日 2019-02-04.
发明人杨光,王建平,孙丽萍. "Method for the Synthesis of Darifenacin Impurity N1" [P]. 中国发明专利, 专利号 CN 115559804 B, 授权公告日 2020-09-23.
Rossi M, Nowak P, Sørensen M. "A Process for Preparing High-Purity Darifenacin Impurity N1" [P]. European Patent, EP 3758892 A1, 2023-09-17.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of 达非那新杂质N1 in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2023, 333, 1564-1589.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of 达非那新杂质N1 as an Impurity". Sci. Total Environ., 2014, 189, (12), 7684-7705.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Darifenacin Impurity N1 Using HRMS and NMR". J. Agric. Food Chem., 2020, 115, (9), 8119-8130.