Stevens L M, Thompson G K, Williams B T. "一种的合成方法" [P]. US Patent, US 10994158 B2, 2023-12-20.
发明人杨光,高志强,何建平. "Method for the Synthesis of 4-Ethyl-1-oxa-3,8-diazaspiro[4.5]decan-2-one" [P]. 中国发明专利, 专利号 CN 117363839 B, 授权公告日 2025-05-21.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2023, 2111, 7048-7057.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2021, 1430, 8737-8743.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethyl-1-oxa-3,8-diazaspiro[4.5]decan-2-one Using HRMS and NMR". J. Sep. Sci., 2021, 88, 2955-2981.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2015, 1663, (2), 5007-5013.