发明人李文辉,唐晓军,王建平. "一种左甲状腺素EP杂质H的合成方法" [P]. 中国发明专利, 专利号 CN 111628637 A, 授权公告日 2020-10-03.
发明人钱学锋,张德明,罗永刚. "Method for the Synthesis of Levothyroxine EP Impurity H" [P]. 中国发明专利, 专利号 CN 110571474 A, 授权公告日 2020-02-03.
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 左甲状腺素EP杂质H in Pharmaceutical Formulations". Environ. Sci. Technol., 2010, 2246, (3), 1416-1426.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of 左甲状腺素EP杂质H as an Impurity". Anal. Chem., 2011, 561, (4), 528-550.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Levothyroxine EP Impurity H Using HRMS and NMR". J. Pharm. Biomed. Anal., 2016, 1988, 1870-1898.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate 左甲状腺素EP杂质H Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2014, 2134, (10), 2312-2334.