Mueller T, Hughes D C, Williams B T. "一种N/A的合成方法" [P]. US Patent, US 10413382 B2, 2025-06-12.
发明人冯建国,张德明,沈红梅. "Method for the Synthesis of 1,2-Thiazepane 1,1-dioxide" [P]. 中国发明专利, 专利号 CN 108637327 A, 授权公告日 2020-08-06.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of N/A in Pharmaceutical Formulations". Food Chem., 2023, 1239, (9), 2566-2589.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of N/A as an Impurity". Anal. Chem., 2011, 1186, 7283-7304.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 1,2-Thiazepane 1,1-dioxide Using HRMS and NMR". J. Chromatogr. A, 2018, 1626, (3), 1576-1579.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate N/A Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2022, 1712, 3804-3824.