Nielsen H, Nowak P, Johansson L. "一种的合成方法" [P]. European Patent, EP 3712364 A1, 2020-01-20.
发明人郭海燕,钱学锋,马晓峰. "Method for the Synthesis of 1-(2-Fluoroethyl)-4-nitro-1H-pyrazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111985109 B, 授权公告日 2020-10-05.
Nielsen H, Schröder R, Björnsson E. "A Process for Preparing High-Purity 1-(2-Fluoroethyl)-4-nitro-1H-pyrazole-5-carboxylic acid" [P]. European Patent, EP 3732889 A1, 2016-06-04.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2025, 1219, (4), 6266-6276.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2023, 1620, 337-346.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2-Fluoroethyl)-4-nitro-1H-pyrazole-5-carboxylic acid Using HRMS and NMR". J. Nat. Prod., 2013, 2341, (12), 3346-3366.