Klinger H, Thompson G K, Hughes D C. "Method for the Synthesis of N1-((1,4-dioxaspiro[4.4]Nonan-2-yl)methyl)ethane-1,2-diamine" [P]. US Patent, US 11384122 B2, 2024-04-08.
Mueller T, O'Brien P Q, Hughes D C. "A Process for Preparing High-Purity N1-((1,4-dioxaspiro[4.4]Nonan-2-yl)methyl)ethane-1,2-diamine" [P]. US Patent, US 10829832 B2, 2022-07-24.
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". Environ. Sci. Technol., 2014, 1248, (2), 2458-2477.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2018, 882, (3), 68-75.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of N1-((1,4-dioxaspiro[4.4]Nonan-2-yl)methyl)ethane-1,2-diamine Using HRMS and NMR". J. Chromatogr. A, 2014, 147, (10), 8593-8601.