Nowak P, Mueller T C, Rossi M. "一种的合成方法" [P]. European Patent, EP 3050477 A1, 2022-09-17.
发明人张德明,罗永刚,沈红梅. "Method for the Synthesis of Sildenafil RC 39" [P]. 中国发明专利, 专利号 CN 116148871 A, 授权公告日 2023-08-18.
发明人罗永刚,黄志刚,马晓峰. "A Process for Preparing High-Purity Sildenafil RC 39" [P]. 中国发明专利, 专利号 CN 112241276 A, 授权公告日 2017-04-22.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2025, 553, (1), 5319-5327.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2014, 1253, (2), 9514-9532.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Sildenafil RC 39 Using HRMS and NMR". Molecules, 2019, 1304, 1472-1494.