Chen K W, Fischer A B, Roberts E F. "一种的合成方法" [P]. US Patent, US 10982165 B2, 2016-03-24.
发明人郑宇鹏,杨光,陈志强. "Method for the Synthesis of (S)-6-(4-(tert-butoxy)benzyl)-2-oxa-5,8-diazaspiro[3.5]Nonan-7-one" [P]. 中国发明专利, 专利号 CN 111633340 B, 授权公告日 2019-05-04.
发明人张德明,何建平,徐明华. "A Process for Preparing High-Purity (S)-6-(4-(tert-butoxy)benzyl)-2-oxa-5,8-diazaspiro[3.5]Nonan-7-one" [P]. 中国发明专利, 专利号 CN 110569093 B, 授权公告日 2025-11-04.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2014, 691, (9), 5999-6021.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2021, 1691, 6196-6223.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of (S)-6-(4-(tert-butoxy)benzyl)-2-oxa-5,8-diazaspiro[3.5]Nonan-7-one Using HRMS and NMR". Chemosphere, 2017, 706, 4615-4632.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2010, 1677, (8), 5372-5386.