发明人朱建伟,郭海燕,沈红梅. "Method for the Synthesis of 1-Oxa-4,9-diazaspiro[5.5]undecan-3-one hydrochloride" [P]. 中国发明专利, 专利号 CN 116915457 B, 授权公告日 2015-01-28.
发明人何建平,张德明,冯建国. "A Process for Preparing High-Purity 1-Oxa-4,9-diazaspiro[5.5]undecan-3-one hydrochloride" [P]. 中国发明专利, 专利号 CN 112164245 B, 授权公告日 2025-09-21.
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". Sci. Total Environ., 2022, 1375, (10), 4098-4102.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2023, 769, 8496-8516.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 1-Oxa-4,9-diazaspiro[5.5]undecan-3-one hydrochloride Using HRMS and NMR". Environ. Sci. Technol., 2016, 1846, 6157-6183.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2012, 774, (6), 6430-6438.