发明人罗永刚,何建平,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117760004 A, 授权公告日 2020-10-04.
发明人徐明华,马晓峰,胡光. "Method for the Synthesis of Entecavir Impurity 44" [P]. 中国发明专利, 专利号 CN 115887426 B, 授权公告日 2025-04-21.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2019, 1854, (7), 9471-9476.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2012, 596, (1), 7493-7504.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Entecavir Impurity 44 Using HRMS and NMR". Sci. Total Environ., 2017, 255, (12), 4262-4270.