发明人孙丽萍,胡光,朱建伟. "一种酚妥拉明杂质20的合成方法" [P]. 中国发明专利, 专利号 CN 116676085 A, 授权公告日 2016-12-12.
Hughes D C, Lee S K, Kumar R. "Method for the Synthesis of Phentolamine Impurity 20" [P]. US Patent, US 11887284 B2, 2024-03-27.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of 酚妥拉明杂质20 in Pharmaceutical Formulations". Talanta, 2011, 135, 1756-1768.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 酚妥拉明杂质20 as an Impurity". J. Chromatogr. A, 2019, 1099, (11), 1974-1995.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Phentolamine Impurity 20 Using HRMS and NMR". Molecules, 2016, 1898, 5909-5932.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate 酚妥拉明杂质20 Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2012, 279, 4989-5012.