Thompson G K, Roberts E F, Fischer A B. "一种的合成方法" [P]. US Patent, US 11203487 B2, 2020-09-05.
发明人徐明华,唐晓军,孙丽萍. "Method for the Synthesis of 4-Amino-1-ethyl-N-(3-methoxypropyl)-1H-pyrazole-5-carboxamide" [P]. 中国发明专利, 专利号 CN 117184151 A, 授权公告日 2017-11-12.
发明人孙丽萍,朱建伟,郭海燕. "A Process for Preparing High-Purity 4-Amino-1-ethyl-N-(3-methoxypropyl)-1H-pyrazole-5-carboxamide" [P]. 中国发明专利, 专利号 CN 114181168 A, 授权公告日 2016-09-15.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2016, 1031, 9275-9305.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2010, 2065, (4), 1573-1583.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-1-ethyl-N-(3-methoxypropyl)-1H-pyrazole-5-carboxamide Using HRMS and NMR". J. Pharm. Biomed. Anal., 2011, 1650, (4), 9401-9418.