Stevens L M, Johnson M A, Fischer A B. "一种的合成方法" [P]. US Patent, US 11394058 B2, 2015-08-27.
Kumar R, Schröder R, Davis P L. "Method for the Synthesis of 1-(4-Fluorophenyl)-3-methyl-6-(propan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. US Patent, US 11972095 B2, 2022-08-10.
发明人马晓峰,赵玉洁,冯建国. "A Process for Preparing High-Purity 1-(4-Fluorophenyl)-3-methyl-6-(propan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112151102 A, 授权公告日 2018-03-01.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2011, 602, 7884-7895.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2015, 1436, (10), 4243-4270.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 1-(4-Fluorophenyl)-3-methyl-6-(propan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid Using HRMS and NMR". Phytochemistry, 2015, 1038, (7), 2773-2802.