Williams B T, Fischer A B, Klinger H. "Method for the Synthesis of 5-Fluorothiophene-2-sulfonyl chloride" [P]. US Patent, US 10576938 B2, 2021-10-15.
Williams B T, Chen K W, Mueller T. "A Process for Preparing High-Purity 5-Fluorothiophene-2-sulfonyl chloride" [P]. US Patent, US 9882790 B2, 2022-03-19.
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". Food Chem., 2014, 1312, (7), 8527-8532.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2025, 776, (4), 8554-8570.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 5-Fluorothiophene-2-sulfonyl chloride Using HRMS and NMR". Anal. Methods, 2013, 167, (12), 8360-8389.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2023, 1224, (3), 6086-6114.