Williams B T, Johnson M A, Klinger H. "Method for the Synthesis of 5-Chloro-6-(3-fluorophenyl)nicotinic acid" [P]. US Patent, US 10812988 B2, 2019-10-22.
Anderson J P, Stevens L M, Yamamoto T. "A Process for Preparing High-Purity 5-Chloro-6-(3-fluorophenyl)nicotinic acid" [P]. US Patent, US 10796693 B2, 2021-10-20.
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". Sci. Total Environ., 2015, 1115, (8), 2974-2990.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2019, 1351, (3), 5357-5385.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 5-Chloro-6-(3-fluorophenyl)nicotinic acid Using HRMS and NMR". J. Sep. Sci., 2021, 395, (10), 825-828.