Johansson L, Martínez F, Nielsen H. "一种的合成方法" [P]. European Patent, EP 3076473 A1, 2016-03-16.
Fischer A B, O'Brien P Q, Klinger H. "Method for the Synthesis of 4-Amino-N-cyclopropyl-1-ethyl-1H-pyrazole-5-carboxamide" [P]. US Patent, US 9857827 B2, 2017-02-08.
发明人黄志刚,郑宇鹏,罗永刚. "A Process for Preparing High-Purity 4-Amino-N-cyclopropyl-1-ethyl-1H-pyrazole-5-carboxamide" [P]. 中国发明专利, 专利号 CN 114100839 B, 授权公告日 2018-09-24.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2019, 2046, (11), 6250-6259.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2014, 990, (7), 9508-9516.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-N-cyclopropyl-1-ethyl-1H-pyrazole-5-carboxamide Using HRMS and NMR". J. Nat. Prod., 2015, 1760, 9391-9413.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2020, 1242, (5), 6311-6327.