发明人王建平,林芳,钱学锋. "Method for the Synthesis of (E)-9-ethyl-3-((2-ethyl-2-(o-tolyl)hydrazono)methyl)-9H-carbazole" [P]. 中国发明专利, 专利号 CN 115155615 B, 授权公告日 2019-10-23.
发明人马晓峰,杨光,钱学锋. "A Process for Preparing High-Purity (E)-9-ethyl-3-((2-ethyl-2-(o-tolyl)hydrazono)methyl)-9H-carbazole" [P]. 中国发明专利, 专利号 CN 109511793 A, 授权公告日 2015-06-16.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2023, 1074, (1), 8183-8204.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2021, 571, (12), 283-304.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of (E)-9-ethyl-3-((2-ethyl-2-(o-tolyl)hydrazono)methyl)-9H-carbazole Using HRMS and NMR". Anal. Chim. Acta, 2023, 601, (4), 2113-2140.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2019, 1670, 5458-5464.