Park J H, O'Brien P Q, Davis P L. "一种的合成方法" [P]. US Patent, US 11541821 B2, 2018-06-03.
Björnsson E, Sørensen M, Kowalski A. "Method for the Synthesis of 4,6-Diazaspiro[2.4]heptane-5,7-dione" [P]. European Patent, EP 3446987 A1, 2023-03-17.
Mueller T, Anderson J P, O'Brien P Q. "A Process for Preparing High-Purity 4,6-Diazaspiro[2.4]heptane-5,7-dione" [P]. US Patent, US 11950474 B2, 2017-12-18.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2017, 283, 6859-6880.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2015, 352, (6), 8115-8132.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 4,6-Diazaspiro[2.4]heptane-5,7-dione Using HRMS and NMR". Anal. Methods, 2016, 1620, (10), 759-774.