Brown S R, Stevens L M, Roberts E F. "Method for the Synthesis of 2-(Difluoromethyl)-3,4-dimethoxypyridine-5-carbonyl chloride" [P]. US Patent, US 11869195 B2, 2023-02-10.
O'Brien P Q, Stevens L M, Schröder R. "A Process for Preparing High-Purity 2-(Difluoromethyl)-3,4-dimethoxypyridine-5-carbonyl chloride" [P]. US Patent, US 9096772 B2, 2017-06-26.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2021, 673, (2), 2689-2698.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2024, 860, (8), 7835-7842.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Difluoromethyl)-3,4-dimethoxypyridine-5-carbonyl chloride Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2010, 2424, 9349-9352.