Johansson L, Martínez F, Kowalski A. "一种的合成方法" [P]. European Patent, EP 3074598 A1, 2016-05-17.
Fischer A B, Williams B T, Johnson M A. "Method for the Synthesis of n-(4-Fluorobenzyl)-[1,2,4]triazolo[4,3-a]pyrazin-8-amine" [P]. US Patent, US 9808836 B2, 2021-10-20.
发明人唐晓军,韩伟,郭海燕. "A Process for Preparing High-Purity n-(4-Fluorobenzyl)-[1,2,4]triazolo[4,3-a]pyrazin-8-amine" [P]. 中国发明专利, 专利号 CN 112493331 B, 授权公告日 2019-05-11.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2016, 2000, (11), 7952-7974.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2020, 326, 136-141.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of n-(4-Fluorobenzyl)-[1,2,4]triazolo[4,3-a]pyrazin-8-amine Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2021, 912, 4693-4703.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2012, 699, 5286-5315.