Mueller T, Stevens L M, O'Brien P Q. "Method for the Synthesis of Benzyl 1,6-diazaspiro[3.4]octane-6-carboxylate" [P]. US Patent, US 10543117 B2, 2023-05-07.
Thompson G K, Kumar R, Brown S R. "A Process for Preparing High-Purity Benzyl 1,6-diazaspiro[3.4]octane-6-carboxylate" [P]. US Patent, US 11805603 B2, 2022-03-22.
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". J. Nat. Prod., 2022, 2011, 6859-6866.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2018, 1817, 4500-4527.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of Benzyl 1,6-diazaspiro[3.4]octane-6-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2014, 1840, (1), 141-145.