发明人郑宇鹏,刘建华,韩伟. "Method for the Synthesis of ethyl 2-(diisopropoxyphosphoryl)-3,3,3-trifluoro-2-{[(4-methylphenyl)sulphonyl]amino}propanoate" [P]. 中国发明专利, 专利号 CN 113026860 B, 授权公告日 2022-11-06.
发明人郑宇鹏,李文辉,杨光. "A Process for Preparing High-Purity ethyl 2-(diisopropoxyphosphoryl)-3,3,3-trifluoro-2-{[(4-methylphenyl)sulphonyl]amino}propanoate" [P]. 中国发明专利, 专利号 CN 110565978 B, 授权公告日 2025-06-19.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of N/A in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2010, 1112, (9), 7560-7586.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of N/A as an Impurity". Chemosphere, 2010, 2457, (11), 3987-3994.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 2-(diisopropoxyphosphoryl)-3,3,3-trifluoro-2-{[(4-methylphenyl)sulphonyl]amino}propanoate Using HRMS and NMR". Anal. Chem., 2025, 1370, (8), 3338-3343.