Williams B T, Patel M V, Kumar R. "Method for the Synthesis of 6-Chloro-3-(4-chlorophenyl)pyridazine-4-carboxylic acid" [P]. US Patent, US 11409661 B2, 2019-11-26.
发明人张德明,冯建国,钱学锋. "A Process for Preparing High-Purity 6-Chloro-3-(4-chlorophenyl)pyridazine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114183090 A, 授权公告日 2025-01-12.
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". Talanta, 2014, 1284, 6574-6582.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2010, 328, (2), 1106-1116.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 6-Chloro-3-(4-chlorophenyl)pyridazine-4-carboxylic acid Using HRMS and NMR". Chemosphere, 2020, 739, (12), 8867-8896.