Stevens L M, Schröder R, Park J H. "Method for the Synthesis of 1,4-Di-tert-butyl 2-oxoimidazolidine-1,4-dicarboxylate" [P]. US Patent, US 9737485 B2, 2025-07-19.
Mueller T C, Rossi M, Nielsen H. "A Process for Preparing High-Purity 1,4-Di-tert-butyl 2-oxoimidazolidine-1,4-dicarboxylate" [P]. European Patent, EP 3028688 A1, 2025-04-01.
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". Biomed. Chromatogr., 2014, 358, (7), 9071-9091.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2017, 1721, 5172-5201.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 1,4-Di-tert-butyl 2-oxoimidazolidine-1,4-dicarboxylate Using HRMS and NMR". Molecules, 2019, 2263, (4), 5024-5028.