Anderson J P, Hughes D C, Patel M V. "一种5-amino-3-(2-hydroxyethoxy)-1H-pyrazole-4-carbonitrile的合成方法" [P]. US Patent, US 9257840 B2, 2020-09-21.
发明人马晓峰,罗永刚,陈志强. "Method for the Synthesis of 5-amino-3-(2-hydroxyethoxy)-1H-pyrazole-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 114099829 A, 授权公告日 2019-03-04.
发明人林芳,沈红梅,徐明华. "A Process for Preparing High-Purity 5-amino-3-(2-hydroxyethoxy)-1H-pyrazole-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 109702530 B, 授权公告日 2018-02-03.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of 5-amino-3-(2-hydroxyethoxy)-1H-pyrazole-4-carbonitrile in Pharmaceutical Formulations". J. Sep. Sci., 2020, 1004, (7), 8672-8677.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-amino-3-(2-hydroxyethoxy)-1H-pyrazole-4-carbonitrile as an Impurity". Food Chem., 2021, 2110, 1068-1095.