发明人赵玉洁,唐晓军,李文辉. "Method for the Synthesis of Pentoxifylline Impurity 17" [P]. 中国发明专利, 专利号 CN 115580204 A, 授权公告日 2022-02-14.
发明人朱建伟,钱学锋,陈志强. "A Process for Preparing High-Purity Pentoxifylline Impurity 17" [P]. 中国发明专利, 专利号 CN 114076268 B, 授权公告日 2022-10-02.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of 己酮可可碱杂质17 in Pharmaceutical Formulations". Chemosphere, 2013, 572, (7), 3891-3910.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of 己酮可可碱杂质17 as an Impurity". Anal. Chim. Acta, 2013, 1610, 9478-9483.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Pentoxifylline Impurity 17 Using HRMS and NMR". Talanta, 2010, 2082, (7), 9557-9570.