发明人韩伟,郭海燕,周伟. "Method for the Synthesis of 1-Ethyl-3H-pyridazino[4,5-b]indol-4(5H)-one" [P]. 中国发明专利, 专利号 CN 110536369 A, 授权公告日 2024-11-21.
发明人钱学锋,韩伟,陈志强. "A Process for Preparing High-Purity 1-Ethyl-3H-pyridazino[4,5-b]indol-4(5H)-one" [P]. 中国发明专利, 专利号 CN 113781198 B, 授权公告日 2024-04-21.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2011, 1341, (3), 4066-4072.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2020, 2045, 6316-6325.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-3H-pyridazino[4,5-b]indol-4(5H)-one Using HRMS and NMR". Anal. Methods, 2018, 1730, 8156-8173.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2022, 1124, (1), 8942-8961.