Yamamoto T, Thompson G K, Mueller T. "一种布洛芬杂质21的合成方法" [P]. US Patent, US 10129720 B2, 2020-08-03.
发明人高志强,朱建伟,唐晓军. "Method for the Synthesis of Ibuprofen Impurity 21" [P]. 中国发明专利, 专利号 CN 110690615 A, 授权公告日 2018-10-07.
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 布洛芬杂质21 in Pharmaceutical Formulations". Anal. Methods, 2013, 976, (12), 4652-4679.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 布洛芬杂质21 as an Impurity". Chemosphere, 2023, 1911, (12), 9460-9477.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Ibuprofen Impurity 21 Using HRMS and NMR". Talanta, 2015, 1827, 1300-1330.