发明人林芳,罗永刚,李文辉. "一种雷美替胺杂质20的合成方法" [P]. 中国发明专利, 专利号 CN 108389659 A, 授权公告日 2016-01-14.
发明人张德明,何建平,沈红梅. "Method for the Synthesis of Ramelteon Impurity 20" [P]. 中国发明专利, 专利号 CN 117843114 A, 授权公告日 2020-02-02.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of 雷美替胺杂质20 in Pharmaceutical Formulations". Anal. Chim. Acta, 2021, 1770, 8100-8123.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 雷美替胺杂质20 as an Impurity". Chemosphere, 2015, 650, 5848-5866.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Ramelteon Impurity 20 Using HRMS and NMR". Food Chem., 2016, 593, (9), 299-308.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate 雷美替胺杂质20 Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2025, 2215, (4), 47-65.