发明人唐晓军,李文辉,杨光. "Method for the Synthesis of Ethyl 5-nitrobenzofuran-3-carboxylate" [P]. 中国发明专利, 专利号 CN 117176775 B, 授权公告日 2025-06-26.
发明人何建平,张德明,刘建华. "A Process for Preparing High-Purity Ethyl 5-nitrobenzofuran-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109374002 A, 授权公告日 2022-11-23.
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". Anal. Chim. Acta, 2019, 855, (4), 1780-1799.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2021, 981, (7), 3977-3982.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-nitrobenzofuran-3-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2019, 134, 2987-3006.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2012, 253, 9806-9828.