Klinger H, Yamamoto T, Roberts E F. "Method for the Synthesis of 4-Bromo-3-chloro-2-(difluoromethyl)pyridine-6-sulfonyl chloride" [P]. US Patent, US 9150515 B2, 2021-01-11.
Davis P L, Fischer A B, Schröder R. "A Process for Preparing High-Purity 4-Bromo-3-chloro-2-(difluoromethyl)pyridine-6-sulfonyl chloride" [P]. US Patent, US 11532390 B2, 2023-03-03.
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". Chromatographia, 2025, 630, (9), 3376-3394.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2015, 1339, 4811-4820.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 4-Bromo-3-chloro-2-(difluoromethyl)pyridine-6-sulfonyl chloride Using HRMS and NMR". Environ. Sci. Technol., 2025, 1706, 2455-2458.