Park J H, Kumar R, O'Brien P Q. "Method for the Synthesis of 3-(4-Chlorophenyl)-1-(2-nitro-4-(trifluoromethyl)phenyl)-6-(trifluoromethyl)-1H-pyrazolo[4,3-b]pyridine" [P]. US Patent, US 11531206 B2, 2021-09-26.
发明人唐晓军,刘建华,赵玉洁. "A Process for Preparing High-Purity 3-(4-Chlorophenyl)-1-(2-nitro-4-(trifluoromethyl)phenyl)-6-(trifluoromethyl)-1H-pyrazolo[4,3-b]pyridine" [P]. 中国发明专利, 专利号 CN 117043095 A, 授权公告日 2023-08-04.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2020, 602, 2163-2172.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2024, 1226, (3), 6374-6392.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 3-(4-Chlorophenyl)-1-(2-nitro-4-(trifluoromethyl)phenyl)-6-(trifluoromethyl)-1H-pyrazolo[4,3-b]pyridine Using HRMS and NMR". J. Sep. Sci., 2013, 520, (7), 4299-4305.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2011, 2428, 3039-3042.