Thompson G K, Anderson J P, Johnson M A. "一种的合成方法" [P]. US Patent, US 9374267 B2, 2019-06-10.
Kumar R, Park J H, Mueller T. "Method for the Synthesis of 5-Amino-1-(3,4-dimethylphenyl)-1H-pyrazole-4-carbonitrile" [P]. US Patent, US 10911535 B2, 2024-05-26.
Kumar R, Mueller T, Stevens L M. "A Process for Preparing High-Purity 5-Amino-1-(3,4-dimethylphenyl)-1H-pyrazole-4-carbonitrile" [P]. US Patent, US 11915637 B2, 2024-03-10.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2020, 1052, (11), 405-412.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2018, 1467, (2), 6043-6068.