发明人胡光,罗永刚,林芳. "Method for the Synthesis of 4-Ethoxy-1H-[1,2,3]triazolo[4,5-d]pyridazin-7-ol" [P]. 中国发明专利, 专利号 CN 112334539 B, 授权公告日 2017-04-07.
Schröder R, Nowak P, Mueller T C. "A Process for Preparing High-Purity 4-Ethoxy-1H-[1,2,3]triazolo[4,5-d]pyridazin-7-ol" [P]. European Patent, EP 3456716 A1, 2022-01-01.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2018, 846, 4832-4856.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2011, 512, (12), 7736-7746.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethoxy-1H-[1,2,3]triazolo[4,5-d]pyridazin-7-ol Using HRMS and NMR". Phytochemistry, 2020, 851, 8658-8662.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2020, 329, 7962-7984.