Mueller T C, Johansson L, Schröder R. "一种的合成方法" [P]. European Patent, EP 3741249 A1, 2023-02-24.
O'Brien P Q, Roberts E F, Park J H. "Method for the Synthesis of 14-(4-Ethoxy-4-oxobutyl)-7-phenyl-5,6,8,9-tetrahydrodibenzo[c,h]acridin-14-ium trifluoromethanesulfonate" [P]. US Patent, US 11033519 B2, 2019-12-15.
发明人林芳,胡光,张德明. "A Process for Preparing High-Purity 14-(4-Ethoxy-4-oxobutyl)-7-phenyl-5,6,8,9-tetrahydrodibenzo[c,h]acridin-14-ium trifluoromethanesulfonate" [P]. 中国发明专利, 专利号 CN 113300217 B, 授权公告日 2024-06-17.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2020, 1719, (12), 1308-1321.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2018, 651, 6762-6767.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 14-(4-Ethoxy-4-oxobutyl)-7-phenyl-5,6,8,9-tetrahydrodibenzo[c,h]acridin-14-ium trifluoromethanesulfonate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2013, 891, 1047-1073.