发明人钱学锋,冯建国,赵玉洁. "Method for the Synthesis of Tert-butyl 3,3-difluoro-1,9-diazaspiro[5.5]Undecane-9-carboxylate" [P]. 中国发明专利, 专利号 CN 110591182 A, 授权公告日 2024-12-25.
Park J H, Yamamoto T, Brown S R. "A Process for Preparing High-Purity Tert-butyl 3,3-difluoro-1,9-diazaspiro[5.5]Undecane-9-carboxylate" [P]. US Patent, US 11901226 B2, 2023-06-25.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2014, 329, 7890-7910.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2021, 532, (3), 1730-1757.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 3,3-difluoro-1,9-diazaspiro[5.5]Undecane-9-carboxylate Using HRMS and NMR". Anal. Chem., 2019, 1539, (3), 3365-3390.