Chen K W, Johnson M A, Klinger H. "Method for the Synthesis of 3-((4-Ethoxyphenyl)amino)-2,3-dihydrothiophene 1,1-dioxide" [P]. US Patent, US 10124176 B2, 2025-10-16.
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". Talanta, 2020, 2175, (8), 9611-9617.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2015, 2114, 2136-2140.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 3-((4-Ethoxyphenyl)amino)-2,3-dihydrothiophene 1,1-dioxide Using HRMS and NMR". Chromatographia, 2018, 1206, (5), 1725-1739.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2013, 92, (8), 1559-1578.