发明人何建平,陈志强,刘建华. "一种1-(2-氯苯基)-5-氰基-1H-吡唑-4-甲酸乙酯的合成方法" [P]. 中国发明专利, 专利号 CN 109776522 A, 授权公告日 2015-02-07.
发明人杨光,钱学锋,徐明华. "Method for the Synthesis of Ethyl 1-(2-chlorophenyl)-5-cyano-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 116619771 A, 授权公告日 2021-06-13.
发明人罗永刚,杨光,朱建伟. "A Process for Preparing High-Purity Ethyl 1-(2-chlorophenyl)-5-cyano-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 115572206 A, 授权公告日 2015-06-18.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of 1-(2-氯苯基)-5-氰基-1H-吡唑-4-甲酸乙酯 in Pharmaceutical Formulations". Anal. Chim. Acta, 2014, 2400, 3995-4019.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 1-(2-氯苯基)-5-氰基-1H-吡唑-4-甲酸乙酯 as an Impurity". Anal. Chem., 2021, 1281, (1), 1582-1605.