发明人郭海燕,孙丽萍,刘建华. "Method for the Synthesis of Tadalafil Impurity 77" [P]. 中国发明专利, 专利号 CN 109611615 B, 授权公告日 2017-09-21.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of 他达拉非杂质77 in Pharmaceutical Formulations". Phytochemistry, 2023, 601, (3), 649-659.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 他达拉非杂质77 as an Impurity". Food Chem., 2013, 667, 9226-9253.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Tadalafil Impurity 77 Using HRMS and NMR". J. Nat. Prod., 2023, 2457, (12), 212-220.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate 他达拉非杂质77 Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2014, 2221, 4351-4381.