发明人郑宇鹏,钱学锋,罗永刚. "Method for the Synthesis of 3-Ethyl-5-(2-(3-ethylbenzo[d]oxazol-2(3H)-ylidene)ethylidene)-2-thioxothiazolidin-4-one" [P]. 中国发明专利, 专利号 CN 108582336 B, 授权公告日 2025-10-27.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2015, 1681, (2), 8463-8475.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2021, 1702, (10), 2598-2609.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethyl-5-(2-(3-ethylbenzo[d]oxazol-2(3H)-ylidene)ethylidene)-2-thioxothiazolidin-4-one Using HRMS and NMR". Anal. Chem., 2019, 1111, (4), 9198-9210.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2013, 270, 6027-6037.