Lee S K, Williams B T, Johnson M A. "一种的合成方法" [P]. US Patent, US 10885820 B2, 2023-12-10.
Lee S K, Brown S R, Kumar R. "Method for the Synthesis of 4-(Difluoromethyl)-2-hydroxybenzonitrile" [P]. US Patent, US 10757263 B2, 2024-11-28.
Brown S R, Davis P L, Anderson J P. "A Process for Preparing High-Purity 4-(Difluoromethyl)-2-hydroxybenzonitrile" [P]. US Patent, US 9220098 B2, 2020-09-19.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2017, 424, (7), 7681-7693.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2016, 1142, (3), 5214-5232.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Difluoromethyl)-2-hydroxybenzonitrile Using HRMS and NMR". J. Agric. Food Chem., 2014, 829, (10), 9715-9719.