发明人郭海燕,杨光,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112326385 A, 授权公告日 2020-03-28.
发明人冯建国,韩伟,胡光. "Method for the Synthesis of Ethyl 4-amino-5-methyl-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 113130907 A, 授权公告日 2020-10-22.
发明人孙丽萍,张德明,周伟. "A Process for Preparing High-Purity Ethyl 4-amino-5-methyl-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 112089614 A, 授权公告日 2019-07-01.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2014, 2286, (9), 8688-8700.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2018, 1203, (7), 9045-9071.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-amino-5-methyl-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole-3-carboxylate Using HRMS and NMR". Talanta, 2025, 1312, (5), 8371-8375.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2024, 847, 956-965.