O'Brien P Q, Kumar R, Yamamoto T. "一种的合成方法" [P]. US Patent, US 11596854 B2, 2024-06-26.
发明人王建平,黄志刚,李文辉. "Method for the Synthesis of 3-Ethyl-2-(3-(3-ethyl-1,1-dimethyl-1H-benzo[e]indol-2(3H)-ylidene)prop-1-en-1-yl)-1,1-dimethyl-1H-benzo[e]indol-3-ium iodide" [P]. 中国发明专利, 专利号 CN 111509989 A, 授权公告日 2025-11-28.
Lee S K, Patel M V, Hughes D C. "A Process for Preparing High-Purity 3-Ethyl-2-(3-(3-ethyl-1,1-dimethyl-1H-benzo[e]indol-2(3H)-ylidene)prop-1-en-1-yl)-1,1-dimethyl-1H-benzo[e]indol-3-ium iodide" [P]. US Patent, US 10675487 B2, 2024-09-08.
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 in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2021, 582, (12), 6598-6627.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2020, 2436, 8861-8874.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethyl-2-(3-(3-ethyl-1,1-dimethyl-1H-benzo[e]indol-2(3H)-ylidene)prop-1-en-1-yl)-1,1-dimethyl-1H-benzo[e]indol-3-ium iodide Using HRMS and NMR". J. Pharm. Biomed. Anal., 2020, 1367, 8694-8711.