发明人刘建华,陈志强,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113575191 A, 授权公告日 2019-06-12.
发明人黄志刚,杨光,朱建伟. "Method for the Synthesis of 8-(Pyrazin-2-yl)-1-oxa-4,8-diazaspiro[5.5]undecane" [P]. 中国发明专利, 专利号 CN 116760184 B, 授权公告日 2023-07-09.
发明人钱学锋,李文辉,罗永刚. "A Process for Preparing High-Purity 8-(Pyrazin-2-yl)-1-oxa-4,8-diazaspiro[5.5]undecane" [P]. 中国发明专利, 专利号 CN 112674486 A, 授权公告日 2017-06-09.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2022, 2077, (11), 9412-9416.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2017, 103, (11), 9607-9628.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 8-(Pyrazin-2-yl)-1-oxa-4,8-diazaspiro[5.5]undecane Using HRMS and NMR". Chromatographia, 2017, 2468, (8), 7010-7040.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2014, 363, 1334-1340.