发明人唐晓军,孙丽萍,周伟. "Method for the Synthesis of N-(sec-Butyl)-1-ethyl-4-nitro-1H-pyrazol-3-amine" [P]. 中国发明专利, 专利号 CN 108469335 A, 授权公告日 2022-10-13.
发明人韩伟,徐明华,何建平. "A Process for Preparing High-Purity N-(sec-Butyl)-1-ethyl-4-nitro-1H-pyrazol-3-amine" [P]. 中国发明专利, 专利号 CN 111651236 B, 授权公告日 2022-01-13.
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". Chemosphere, 2017, 1728, (12), 2295-2325.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2010, 1456, 8957-8976.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of N-(sec-Butyl)-1-ethyl-4-nitro-1H-pyrazol-3-amine Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2010, 1873, (11), 8301-8325.