Björnsson E, Johansson L, Lefèvre J P. "Method for the Synthesis of 2-(tert-Butylsulfonyl)-2-[2-(3,4-dichlorophenyl)hydrazono]acetonitrile" [P]. European Patent, EP 3370242 A1, 2016-06-13.
Johnson M A, Yamamoto T, Hughes D C. "A Process for Preparing High-Purity 2-(tert-Butylsulfonyl)-2-[2-(3,4-dichlorophenyl)hydrazono]acetonitrile" [P]. US Patent, US 11544404 B2, 2017-12-10.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2014, 974, (4), 7778-7781.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2017, 694, 9085-9113.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 2-(tert-Butylsulfonyl)-2-[2-(3,4-dichlorophenyl)hydrazono]acetonitrile Using HRMS and NMR". Anal. Methods, 2022, 1939, (2), 4264-4277.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2024, 961, (9), 4492-4511.