Thompson G K, O'Brien P Q, Brown S R. "一种的合成方法" [P]. US Patent, US 11785091 B2, 2015-07-08.
发明人胡光,周伟,郭海燕. "Method for the Synthesis of 4-Cyano-6-(difluoromethyl)-5-methoxypyridine-2-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 114742570 B, 授权公告日 2023-06-11.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2024, 433, 3640-3665.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2018, 747, (12), 6155-6175.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 4-Cyano-6-(difluoromethyl)-5-methoxypyridine-2-sulfonyl chloride Using HRMS and NMR". Anal. Methods, 2010, 914, (1), 807-837.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2022, 2205, (5), 8349-8365.