发明人张德明,周伟,韩伟. "Method for the Synthesis of 1-(3-Chloro-4-methoxyphenyl)-3-(ethoxycarbonyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114532630 A, 授权公告日 2017-11-01.
发明人冯建国,陈志强,罗永刚. "A Process for Preparing High-Purity 1-(3-Chloro-4-methoxyphenyl)-3-(ethoxycarbonyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113196747 B, 授权公告日 2018-03-15.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2012, 1971, (8), 9690-9694.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2013, 2470, (5), 4247-4269.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 1-(3-Chloro-4-methoxyphenyl)-3-(ethoxycarbonyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid Using HRMS and NMR". J. Chromatogr. A, 2020, 728, (8), 7893-7910.