Chen K W, Fischer A B, Stevens L M. "Method for the Synthesis of 1-Ethyl-5-methoxy-1H-benzo[d]imidazol-2-amine" [P]. US Patent, US 10472501 B2, 2023-10-10.
Sørensen M, Jørgensen K, Mueller T C. "A Process for Preparing High-Purity 1-Ethyl-5-methoxy-1H-benzo[d]imidazol-2-amine" [P]. European Patent, EP 3605863 A1, 2020-07-01.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2017, 1328, 9240-9254.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2016, 627, (12), 2728-2735.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-5-methoxy-1H-benzo[d]imidazol-2-amine Using HRMS and NMR". J. Sep. Sci., 2019, 1142, 9494-9504.