Fischer A B, O'Brien P Q, Hughes D C. "Method for the Synthesis of Methyl 4-amino-1-ethyl-3-methyl-1h-pyrazole-5-carboxylate" [P]. US Patent, US 9690924 B2, 2016-05-28.
发明人王建平,陈志强,钱学锋. "A Process for Preparing High-Purity Methyl 4-amino-1-ethyl-3-methyl-1h-pyrazole-5-carboxylate" [P]. 中国发明专利, 专利号 CN 114318640 A, 授权公告日 2019-05-10.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2025, 1037, (8), 304-328.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2013, 819, (11), 808-835.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 4-amino-1-ethyl-3-methyl-1h-pyrazole-5-carboxylate Using HRMS and NMR". J. Nat. Prod., 2011, 1589, (8), 5226-5256.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2018, 747, 8720-8734.