发明人马晓峰,何建平,周伟. "一种羟甲唑啉杂质N1的合成方法" [P]. 中国发明专利, 专利号 CN 115511975 A, 授权公告日 2019-07-24.
发明人钱学锋,郑宇鹏,陈志强. "Method for the Synthesis of Oxymetazoline Impurity N1" [P]. 中国发明专利, 专利号 CN 114377850 B, 授权公告日 2022-03-11.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of 羟甲唑啉杂质N1 in Pharmaceutical Formulations". Molecules, 2019, 435, 541-561.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 羟甲唑啉杂质N1 as an Impurity". Food Chem., 2011, 350, (11), 65-89.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Oxymetazoline Impurity N1 Using HRMS and NMR". J. Sep. Sci., 2012, 2060, 8122-8135.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate 羟甲唑啉杂质N1 Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2021, 540, 1364-1388.