Kumar R, Stevens L M, Williams B T. "一种的合成方法" [P]. US Patent, US 9735392 B2, 2023-05-18.
Anderson J P, Yamamoto T, Williams B T. "Method for the Synthesis of ethyl 1-(difluoromethyl)-3-methyl-pyrazole-4-carboxylate" [P]. US Patent, US 11711379 B2, 2023-10-19.
发明人徐明华,孙丽萍,马晓峰. "A Process for Preparing High-Purity ethyl 1-(difluoromethyl)-3-methyl-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 111810835 B, 授权公告日 2015-09-23.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2017, 2017, 7067-7071.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2017, 346, 8878-8902.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 1-(difluoromethyl)-3-methyl-pyrazole-4-carboxylate Using HRMS and NMR". J. Pharm. Biomed. Anal., 2024, 1298, (8), 9389-9411.