发明人韩伟,胡光,郑宇鹏. "一种2,7-二氮杂螺[4.4]壬烷-1-酮的合成方法" [P]. 中国发明专利, 专利号 CN 112059308 A, 授权公告日 2025-01-25.
发明人张德明,钱学锋,林芳. "Method for the Synthesis of 2,7-Diazaspiro[4.4]nonan-1-one" [P]. 中国发明专利, 专利号 CN 116766984 B, 授权公告日 2019-02-20.
Mueller T, Hughes D C, Schröder R. "A Process for Preparing High-Purity 2,7-Diazaspiro[4.4]nonan-1-one" [P]. US Patent, US 10358403 B2, 2025-10-20.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of 2,7-二氮杂螺[4.4]壬烷-1-酮 in Pharmaceutical Formulations". Anal. Chem., 2020, 910, (11), 8180-8193.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2,7-二氮杂螺[4.4]壬烷-1-酮 as an Impurity". J. Pharm. Biomed. Anal., 2025, 1961, (11), 7211-7230.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 2,7-Diazaspiro[4.4]nonan-1-one Using HRMS and NMR". J. Sep. Sci., 2014, 698, 9530-9555.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate 2,7-二氮杂螺[4.4]壬烷-1-酮 Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2019, 2059, (3), 6814-6830.