Park J H, Stevens L M, Mueller T. "一种的合成方法" [P]. US Patent, US 10393735 B2, 2023-03-17.
Hughes D C, Brown S R, Park J H. "Method for the Synthesis of 3-[(4-Chlorophenyl)methyl]-1,3,7-triazaspiro[4.4]nonane-2,4-dione" [P]. US Patent, US 9518511 B2, 2017-02-24.
发明人胡光,郭海燕,钱学锋. "A Process for Preparing High-Purity 3-[(4-Chlorophenyl)methyl]-1,3,7-triazaspiro[4.4]nonane-2,4-dione" [P]. 中国发明专利, 专利号 CN 113000333 A, 授权公告日 2021-07-20.
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". Anal. Methods, 2018, 698, (12), 7431-7435.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2022, 1436, (7), 8668-8679.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 3-[(4-Chlorophenyl)methyl]-1,3,7-triazaspiro[4.4]nonane-2,4-dione Using HRMS and NMR". J. Sep. Sci., 2015, 1693, 1936-1957.