Williams B T, Lee S K, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 9986909 B2, 2017-10-19.
Chen K W, Johnson M A, Patel M V. "Method for the Synthesis of 6-Bromo-9H-pyrido[3,4-b]indole-3-carboxylic acid" [P]. US Patent, US 9086110 B2, 2020-01-17.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2011, 1522, (9), 9507-9510.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2023, 143, (11), 5037-5060.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 6-Bromo-9H-pyrido[3,4-b]indole-3-carboxylic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2019, 138, (7), 6797-6826.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2017, 1900, 7989-8007.