Stevens L M, Patel M V, Klinger H. "一种的合成方法" [P]. US Patent, US 9169976 B2, 2018-03-06.
发明人陈志强,孙丽萍,王建平. "Method for the Synthesis of tert-Butyl 2-(3,4-dimethylphenyl)-3-sulfanylidene-1,4,8-triazaspiro[4.5]dec-1-ene-8-carboxylate" [P]. 中国发明专利, 专利号 CN 117903898 A, 授权公告日 2019-03-06.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2015, 1772, (3), 9683-9701.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2017, 1902, (4), 8377-8396.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 2-(3,4-dimethylphenyl)-3-sulfanylidene-1,4,8-triazaspiro[4.5]dec-1-ene-8-carboxylate Using HRMS and NMR". Phytochemistry, 2023, 2134, (8), 3423-3434.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2010, 1690, (1), 7347-7361.