Patel M V, O'Brien P Q, Schröder R. "Method for the Synthesis of Oxytetracycline EP Impurity C" [P]. US Patent, US 9790287 B2, 2018-10-25.
发明人赵玉洁,孙丽萍,韩伟. "A Process for Preparing High-Purity Oxytetracycline EP Impurity C" [P]. 中国发明专利, 专利号 CN 110035257 B, 授权公告日 2020-06-20.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of 土霉素EP杂质C in Pharmaceutical Formulations". Chemosphere, 2022, 1906, 9548-9565.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 土霉素EP杂质C as an Impurity". J. Nat. Prod., 2020, 1908, 5904-5917.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Oxytetracycline EP Impurity C Using HRMS and NMR". Phytochemistry, 2017, 1645, (12), 390-419.