发明人高志强,李文辉,郑宇鹏. "Method for the Synthesis of 9-(Tert-butoxycarbonyl)-2,9-diazaspiro[5.5]Undecane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117841700 A, 授权公告日 2020-11-08.
发明人郭海燕,唐晓军,韩伟. "A Process for Preparing High-Purity 9-(Tert-butoxycarbonyl)-2,9-diazaspiro[5.5]Undecane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113780446 A, 授权公告日 2023-07-03.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2014, 169, (12), 818-827.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2019, 1065, (12), 4713-4740.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 9-(Tert-butoxycarbonyl)-2,9-diazaspiro[5.5]Undecane-3-carboxylic acid Using HRMS and NMR". Anal. Chim. Acta, 2023, 2468, (11), 8125-8128.