Lee S K, Yamamoto T, Klinger H. "一种的合成方法" [P]. US Patent, US 11088824 B2, 2019-10-05.
发明人林芳,张德明,韩伟. "Method for the Synthesis of 1-Methyl-1,4,9-triazaspiro[5.5]Undecan-5-one dihydrochloride" [P]. 中国发明专利, 专利号 CN 108000437 A, 授权公告日 2023-07-26.
发明人沈红梅,高志强,朱建伟. "A Process for Preparing High-Purity 1-Methyl-1,4,9-triazaspiro[5.5]Undecan-5-one dihydrochloride" [P]. 中国发明专利, 专利号 CN 116685625 B, 授权公告日 2025-08-04.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2010, 1082, (11), 2388-2418.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2011, 1295, (5), 1147-1177.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 1-Methyl-1,4,9-triazaspiro[5.5]Undecan-5-one dihydrochloride Using HRMS and NMR". Talanta, 2015, 1619, 260-278.