Schröder R, Lefèvre J P, Jørgensen K. "Method for the Synthesis of N-[(3-Bromothiophen-2-yl)methyl]-1-ethyl-1H-pyrazol-4-amine" [P]. European Patent, EP 3463817 A1, 2017-04-23.
发明人孙丽萍,罗永刚,赵玉洁. "A Process for Preparing High-Purity N-[(3-Bromothiophen-2-yl)methyl]-1-ethyl-1H-pyrazol-4-amine" [P]. 中国发明专利, 专利号 CN 112150148 B, 授权公告日 2019-05-28.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2017, 222, (2), 9497-9507.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2014, 781, 8700-8719.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of N-[(3-Bromothiophen-2-yl)methyl]-1-ethyl-1H-pyrazol-4-amine Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2020, 581, (6), 1456-1471.