Johnson M A, Anderson J P, Schröder R. "一种西地那非-d8的合成方法" [P]. US Patent, US 9246661 B2, 2024-12-03.
发明人周伟,杨光,高志强. "Method for the Synthesis of Sildenafil-d8" [P]. 中国发明专利, 专利号 CN 112455781 B, 授权公告日 2015-09-06.
Roberts E F, Park J H, Williams B T. "A Process for Preparing High-Purity Sildenafil-d8" [P]. US Patent, US 10750164 B2, 2019-03-07.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of 西地那非-d8 in Pharmaceutical Formulations". Biomed. Chromatogr., 2016, 1630, 2556-2586.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 西地那非-d8 as an Impurity". Phytochemistry, 2024, 307, (3), 7618-7633.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Sildenafil-d8 Using HRMS and NMR". Molecules, 2024, 2427, 1863-1885.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate 西地那非-d8 Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2017, 2139, 2710-2739.