发明人孙丽萍,韩伟,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111703776 A, 授权公告日 2016-01-08.
发明人周伟,马晓峰,郭海燕. "Method for the Synthesis of 1-(2,2-Difluoroethyl)-4-nitro-1H-pyrazole-3-carbonyl chloride" [P]. 中国发明专利, 专利号 CN 115233285 A, 授权公告日 2015-05-06.
发明人李文辉,唐晓军,张德明. "A Process for Preparing High-Purity 1-(2,2-Difluoroethyl)-4-nitro-1H-pyrazole-3-carbonyl chloride" [P]. 中国发明专利, 专利号 CN 116389220 A, 授权公告日 2021-08-25.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2022, 1978, 8022-8028.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2020, 2372, 7998-8017.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2,2-Difluoroethyl)-4-nitro-1H-pyrazole-3-carbonyl chloride Using HRMS and NMR". J. Sep. Sci., 2016, 773, (1), 3349-3368.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2025, 1023, 6046-6056.