发明人孙丽萍,杨光,钱学锋. "Method for the Synthesis of 1-(2-Ethoxy-2-Oxoethyl)-4-(Ethoxycarbonyl)Pyridin-1-Ium Chloride" [P]. 中国发明专利, 专利号 CN 114848976 A, 授权公告日 2025-02-28.
发明人陈志强,赵玉洁,沈红梅. "A Process for Preparing High-Purity 1-(2-Ethoxy-2-Oxoethyl)-4-(Ethoxycarbonyl)Pyridin-1-Ium Chloride" [P]. 中国发明专利, 专利号 CN 117542026 A, 授权公告日 2021-01-23.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2021, 465, (10), 9508-9523.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2011, 1357, (7), 6209-6219.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2-Ethoxy-2-Oxoethyl)-4-(Ethoxycarbonyl)Pyridin-1-Ium Chloride Using HRMS and NMR". Environ. Sci. Technol., 2012, 1935, 1421-1438.