发明人刘建华,郭海燕,胡光. "Method for the Synthesis of 1-(4-chlorobenzyl)-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108019508 B, 授权公告日 2020-12-07.
发明人杨光,孙丽萍,朱建伟. "A Process for Preparing High-Purity 1-(4-chlorobenzyl)-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116863875 A, 授权公告日 2018-03-15.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of 1-(4-chlorobenzyl)-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid in Pharmaceutical Formulations". J. Sep. Sci., 2011, 1697, (7), 1283-1310.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of 1-(4-chlorobenzyl)-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid as an Impurity". Sci. Total Environ., 2010, 858, (2), 2361-2370.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 1-(4-chlorobenzyl)-6-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid Using HRMS and NMR". Molecules, 2020, 1110, 6713-6724.