Roberts E F, Klinger H, Anderson J P. "一种2-硝基-4-氟-5-(1-吡唑基)苯甲酸的合成方法" [P]. US Patent, US 9032481 B2, 2020-01-12.
Mueller T, Yamamoto T, Anderson J P. "Method for the Synthesis of 4-Fluoro-5-(1-pyrazolyl)-2-nitrobenzoic Acid" [P]. US Patent, US 9994382 B2, 2022-08-11.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of 2-硝基-4-氟-5-(1-吡唑基)苯甲酸 in Pharmaceutical Formulations". Anal. Chim. Acta, 2011, 679, 5222-5226.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2-硝基-4-氟-5-(1-吡唑基)苯甲酸 as an Impurity". Anal. Chem., 2019, 1276, 6425-6444.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 4-Fluoro-5-(1-pyrazolyl)-2-nitrobenzoic Acid Using HRMS and NMR". Chromatographia, 2021, 2336, (3), 4814-4820.