Park J H, Fischer A B, Davis P L. "一种的合成方法" [P]. US Patent, US 9123280 B2, 2020-07-01.
发明人韩伟,唐晓军,徐明华. "Method for the Synthesis of 4-chloro-2-methylpyrazolo[1,5-a]pyrazine" [P]. 中国发明专利, 专利号 CN 116424197 B, 授权公告日 2023-02-11.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2021, 1007, 6169-6174.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2025, 1178, 6465-6475.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 4-chloro-2-methylpyrazolo[1,5-a]pyrazine Using HRMS and NMR". Sci. Total Environ., 2019, 922, (5), 3309-3313.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2016, 232, 1689-1692.