发明人韩伟,沈红梅,马晓峰. "Method for the Synthesis of 8-tert-Butyl-4-(2,5-difluorobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112472016 B, 授权公告日 2016-06-11.
Chen K W, Roberts E F, Schröder R. "A Process for Preparing High-Purity 8-tert-Butyl-4-(2,5-difluorobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid" [P]. US Patent, US 10833682 B2, 2022-06-24.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2011, 1076, (9), 5953-5956.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2016, 1698, (10), 642-665.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 8-tert-Butyl-4-(2,5-difluorobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid Using HRMS and NMR". Talanta, 2013, 989, 3079-3105.