Mueller T, Lee S K, Patel M V. "Method for the Synthesis of Olopatadine Impurity C504 HBr" [P]. US Patent, US 10966389 B2, 2017-03-26.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of 奥洛他定杂质C504氢溴酸盐 in Pharmaceutical Formulations". Biomed. Chromatogr., 2021, 2336, 4057-4076.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 奥洛他定杂质C504氢溴酸盐 as an Impurity". Anal. Chim. Acta, 2024, 1335, (7), 4072-4097.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of Olopatadine Impurity C504 HBr Using HRMS and NMR". Anal. Chem., 2022, 1996, (4), 5295-5312.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate 奥洛他定杂质C504氢溴酸盐 Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2016, 1983, 895-920.