发明人黄志刚,沈红梅,赵玉洁. "一种他达拉非杂质N1的合成方法" [P]. 中国发明专利, 专利号 CN 111689905 A, 授权公告日 2023-04-03.
发明人孙丽萍,黄志刚,陈志强. "Method for the Synthesis of Tadalafil Impurity N1" [P]. 中国发明专利, 专利号 CN 109815528 A, 授权公告日 2022-05-17.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of 他达拉非杂质N1 in Pharmaceutical Formulations". Phytochemistry, 2015, 393, 4357-4383.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 他达拉非杂质N1 as an Impurity". Anal. Chem., 2012, 218, 1701-1705.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of Tadalafil Impurity N1 Using HRMS and NMR". Sci. Total Environ., 2013, 2297, (4), 5070-5087.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate 他达拉非杂质N1 Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2018, 1804, 110-128.