Mueller T, Kumar R, Lee S K. "Method for the Synthesis of Terbutaline Impurity 33" [P]. US Patent, US 11204848 B2, 2025-10-22.
发明人韩伟,黄志刚,李文辉. "A Process for Preparing High-Purity Terbutaline Impurity 33" [P]. 中国发明专利, 专利号 CN 113685241 B, 授权公告日 2017-05-03.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of 特布他林杂质33 in Pharmaceutical Formulations". Phytochemistry, 2022, 555, 2208-2237.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 特布他林杂质33 as an Impurity". J. Pharm. Biomed. Anal., 2019, 1493, 4884-4914.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Terbutaline Impurity 33 Using HRMS and NMR". Food Chem., 2020, 613, 2311-2334.