Williams B T, Davis P L, Klinger H. "Method for the Synthesis of Ethyl 6-fluoropyrazolo[1,5-a]pyridine-3-carboxylate" [P]. US Patent, US 11554790 B2, 2023-04-07.
发明人黄志刚,郭海燕,沈红梅. "A Process for Preparing High-Purity Ethyl 6-fluoropyrazolo[1,5-a]pyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110935943 A, 授权公告日 2016-07-04.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2019, 835, 1745-1766.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2014, 1319, (5), 7991-7994.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 6-fluoropyrazolo[1,5-a]pyridine-3-carboxylate Using HRMS and NMR". Anal. Chem., 2011, 1828, (4), 4896-4913.