发明人何建平,韩伟,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108749329 A, 授权公告日 2017-11-10.
Fischer A B, Lee S K, Mueller T. "Method for the Synthesis of 1-Ethyl-2-(7-(1-ethyl-3,3-dimethylindolin-2-ylidene)hepta-1,3,5-trien-1-yl)-3,3-dimethyl-3H-indol-1-ium iodide" [P]. US Patent, US 10530966 B2, 2018-03-12.
发明人何建平,张德明,高志强. "A Process for Preparing High-Purity 1-Ethyl-2-(7-(1-ethyl-3,3-dimethylindolin-2-ylidene)hepta-1,3,5-trien-1-yl)-3,3-dimethyl-3H-indol-1-ium iodide" [P]. 中国发明专利, 专利号 CN 114135837 A, 授权公告日 2021-12-10.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2011, 419, 3724-3748.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2021, 1254, (9), 4614-4641.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-2-(7-(1-ethyl-3,3-dimethylindolin-2-ylidene)hepta-1,3,5-trien-1-yl)-3,3-dimethyl-3H-indol-1-ium iodide Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2012, 2074, (10), 2552-2566.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2025, 1513, 9717-9745.