发明人王建平,黄志刚,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108268567 A, 授权公告日 2022-08-22.
发明人赵玉洁,李文辉,沈红梅. "Method for the Synthesis of 4,5-dimethoxy-1H-indole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112730518 B, 授权公告日 2022-07-17.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2011, 2033, (3), 4943-4968.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2016, 465, 3242-3258.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 4,5-dimethoxy-1H-indole-2-carboxylic acid Using HRMS and NMR". Chemosphere, 2015, 2270, (12), 7490-7505.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2014, 665, (3), 24-27.