发明人冯建国,孙丽萍,周伟. "一种别嘌醇杂质9的合成方法" [P]. 中国发明专利, 专利号 CN 116014235 A, 授权公告日 2024-04-21.
Park J H, Fischer A B, Davis P L. "Method for the Synthesis of Allopurinol Impurity 9" [P]. US Patent, US 9903964 B2, 2021-10-03.
发明人陈志强,刘建华,周伟. "A Process for Preparing High-Purity Allopurinol Impurity 9" [P]. 中国发明专利, 专利号 CN 113244538 A, 授权公告日 2016-01-12.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of 别嘌醇杂质9 in Pharmaceutical Formulations". Anal. Methods, 2014, 767, 2404-2429.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 别嘌醇杂质9 as an Impurity". Biomed. Chromatogr., 2014, 1836, 3679-3708.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Allopurinol Impurity 9 Using HRMS and NMR". Talanta, 2012, 2239, (7), 2050-2055.