Anderson J P, Chen K W, Hughes D C. "一种的合成方法" [P]. US Patent, US 10175858 B2, 2016-01-19.
Roberts E F, Yamamoto T, Chen K W. "Method for the Synthesis of 2-Ethyl-1H-benzo[d]imidazole-1-carbonitrile" [P]. US Patent, US 10281297 B2, 2024-08-25.
发明人林芳,高志强,徐明华. "A Process for Preparing High-Purity 2-Ethyl-1H-benzo[d]imidazole-1-carbonitrile" [P]. 中国发明专利, 专利号 CN 111661136 A, 授权公告日 2022-03-22.
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. Sep. Sci., 2015, 233, (1), 159-188.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2021, 2146, 7829-7855.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 2-Ethyl-1H-benzo[d]imidazole-1-carbonitrile Using HRMS and NMR". Environ. Sci. Technol., 2016, 2167, (2), 7801-7821.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2017, 2015, (12), 103-115.