发明人沈红梅,周伟,韩伟. "Method for the Synthesis of Ethyl 5-butoxy-1H-pyrazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110069532 A, 授权公告日 2015-03-06.
发明人冯建国,杨光,徐明华. "A Process for Preparing High-Purity Ethyl 5-butoxy-1H-pyrazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 108792615 B, 授权公告日 2021-02-21.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2013, 351, (12), 3125-3129.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2020, 1171, (1), 8657-8675.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-butoxy-1H-pyrazole-3-carboxylate Using HRMS and NMR". Anal. Chem., 2016, 1149, 5391-5410.