O'Brien P Q, Patel M V, Schröder R. "一种的合成方法" [P]. US Patent, US 10619121 B2, 2020-05-26.
Fischer A B, Patel M V, Park J H. "Method for the Synthesis of 1-(2-(2-Chloro-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(4-(dimethylamino)benzylidene)-3-methyl-1H-pyrazol-5(4H)-one" [P]. US Patent, US 11984443 B2, 2018-02-05.
发明人杨光,林芳,高志强. "A Process for Preparing High-Purity 1-(2-(2-Chloro-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(4-(dimethylamino)benzylidene)-3-methyl-1H-pyrazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 109047151 B, 授权公告日 2023-10-11.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2018, 1117, (9), 8340-8360.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2012, 2462, (1), 201-229.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2-(2-Chloro-6H-indolo[2,3-b]quinoxalin-6-yl)acetyl)-4-(4-(dimethylamino)benzylidene)-3-methyl-1H-pyrazol-5(4H)-one Using HRMS and NMR". Anal. Chem., 2016, 674, (10), 664-685.