Patel M V, Johnson M A, Davis P L. "Method for the Synthesis of Methyl 3-(6-oxo-2-propyl-4-(trifluoromethyl)-2,6-dihydro-7h-pyrazolo[3,4-b]pyridin-7-yl)propanoate" [P]. US Patent, US 9064869 B2, 2025-11-13.
发明人朱建伟,罗永刚,钱学锋. "A Process for Preparing High-Purity Methyl 3-(6-oxo-2-propyl-4-(trifluoromethyl)-2,6-dihydro-7h-pyrazolo[3,4-b]pyridin-7-yl)propanoate" [P]. 中国发明专利, 专利号 CN 113370836 B, 授权公告日 2020-08-05.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2016, 875, 6830-6847.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2015, 2381, (1), 7584-7613.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 3-(6-oxo-2-propyl-4-(trifluoromethyl)-2,6-dihydro-7h-pyrazolo[3,4-b]pyridin-7-yl)propanoate Using HRMS and NMR". Talanta, 2019, 352, 2407-2417.