发明人林芳,刘建华,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116810610 A, 授权公告日 2019-03-03.
发明人沈红梅,郭海燕,罗永刚. "Method for the Synthesis of 9-Oxa-2-azaspiro[5.5]undecan-1-one" [P]. 中国发明专利, 专利号 CN 117883071 B, 授权公告日 2025-04-05.
发明人林芳,钱学锋,黄志刚. "A Process for Preparing High-Purity 9-Oxa-2-azaspiro[5.5]undecan-1-one" [P]. 中国发明专利, 专利号 CN 111540327 B, 授权公告日 2017-09-19.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2020, 2067, (9), 8801-8804.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2015, 621, (11), 7015-7041.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 9-Oxa-2-azaspiro[5.5]undecan-1-one Using HRMS and NMR". Food Chem., 2022, 2034, (10), 2618-2643.