Brown S R, Roberts E F, Chen K W. "一种的合成方法" [P]. US Patent, US 11073572 B2, 2025-02-18.
Park J H, Thompson G K, Johnson M A. "Method for the Synthesis of Ethyl 7-methoxy-2-methylpyrazolo[1,5-a]pyridine-4-carboxylate" [P]. US Patent, US 11910361 B2, 2015-03-07.
发明人高志强,赵玉洁,朱建伟. "A Process for Preparing High-Purity Ethyl 7-methoxy-2-methylpyrazolo[1,5-a]pyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 112876656 B, 授权公告日 2015-05-13.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2021, 698, (12), 7090-7105.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2015, 229, (12), 3585-3608.