Yamamoto T, Lee S K, O'Brien P Q. "Method for the Synthesis of Ethyl 1-(3-chlorophenyl)-5-cyano-1H-pyrazole-4-carboxylate" [P]. US Patent, US 9610952 B2, 2017-07-25.
发明人李文辉,罗永刚,刘建华. "A Process for Preparing High-Purity Ethyl 1-(3-chlorophenyl)-5-cyano-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 108478601 A, 授权公告日 2024-03-03.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of 5-氰基-1-(3-氯苯基)-1H-吡唑-4-羧酸乙酯 in Pharmaceutical Formulations". Sci. Total Environ., 2020, 1143, (2), 4672-4689.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-氰基-1-(3-氯苯基)-1H-吡唑-4-羧酸乙酯 as an Impurity". J. Chromatogr. A, 2017, 2138, 2650-2655.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 1-(3-chlorophenyl)-5-cyano-1H-pyrazole-4-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2023, 981, 6170-6197.