Nowak P, Sørensen M, Johansson L. "一种托伐普坦杂质61的合成方法" [P]. European Patent, EP 3521610 A1, 2017-12-19.
O'Brien P Q, Mueller T, Yamamoto T. "Method for the Synthesis of Tolvaptan Impurity 61" [P]. US Patent, US 11508035 B2, 2016-06-25.
发明人周伟,赵玉洁,张德明. "A Process for Preparing High-Purity Tolvaptan Impurity 61" [P]. 中国发明专利, 专利号 CN 115499116 A, 授权公告日 2015-04-02.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of 托伐普坦杂质61 in Pharmaceutical Formulations". Food Chem., 2021, 1671, (8), 7224-7246.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of 托伐普坦杂质61 as an Impurity". Anal. Chem., 2020, 1737, (4), 4993-5011.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Tolvaptan Impurity 61 Using HRMS and NMR". Talanta, 2025, 944, 7973-7992.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate 托伐普坦杂质61 Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2021, 861, (6), 880-887.