发明人杨光,徐明华,林芳. "Method for the Synthesis of 4-(4-Chloro-2-fluorobenzoyl)-8-methyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108744644 B, 授权公告日 2020-05-08.
发明人马晓峰,孙丽萍,何建平. "A Process for Preparing High-Purity 4-(4-Chloro-2-fluorobenzoyl)-8-methyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116748352 A, 授权公告日 2018-12-09.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2014, 1292, (4), 2765-2784.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2015, 1898, 4672-4678.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 4-(4-Chloro-2-fluorobenzoyl)-8-methyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid Using HRMS and NMR". Molecules, 2018, 350, (5), 2827-2831.