Jørgensen K, Johansson L, Kowalski A. "Method for the Synthesis of 4-(3-Ethylisoxazol-5-yl)-1-methylpyridin-1-ium chloride" [P]. European Patent, EP 3566130 A1, 2025-04-14.
发明人韩伟,朱建伟,周伟. "A Process for Preparing High-Purity 4-(3-Ethylisoxazol-5-yl)-1-methylpyridin-1-ium chloride" [P]. 中国发明专利, 专利号 CN 117086820 B, 授权公告日 2020-02-12.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2021, 1461, (12), 1030-1046.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2018, 1406, (7), 5838-5856.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 4-(3-Ethylisoxazol-5-yl)-1-methylpyridin-1-ium chloride Using HRMS and NMR". J. Nat. Prod., 2012, 1445, (8), 2442-2467.