Schröder R, Brown S R, Chen K W. "Method for the Synthesis of 1,4-Diazaspiro[5.5]undecane-5,9-dione hydrochloride" [P]. US Patent, US 10315277 B2, 2023-02-04.
发明人胡光,王建平,徐明华. "A Process for Preparing High-Purity 1,4-Diazaspiro[5.5]undecane-5,9-dione hydrochloride" [P]. 中国发明专利, 专利号 CN 111733863 B, 授权公告日 2018-05-05.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2018, 81, 7746-7756.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2012, 1723, (12), 2953-2978.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 1,4-Diazaspiro[5.5]undecane-5,9-dione hydrochloride Using HRMS and NMR". Chemosphere, 2011, 2019, (4), 3805-3834.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2015, 1845, 2004-2011.