作者:E. V. Nosova、G. N. Lipunova、M. I. Kodess、P. V. Vasil’eva、V. N. Charushin
DOI:10.1007/s11172-005-0119-5
日期:2004.10
Reactions of 2-aminopyridine and 2-amino-5-methylpyridine with 2,3,4,5-tetrafluorobenzoyl chloride afforded N,N’-diaroylpyridinium salts, which were converted into 6H-pyrido[1,2-a]quinazolin-6-ones by refluxing in toluene in the presence of triethylamine. The angular structure of the tricyclic derivatives obtained was confirmed by 19F and 13C NMR spectroscopy and 2D heteronuclear HetCOR and HMBC experiments.
2-氨基吡啶和2-氨基-5-甲基吡啶与2,3,4,5-四氟苯甲酰氯的反应生成N,N’-二酰基吡啶盐,在甲苯中回流并在三乙胺存在下转化为6H-吡啶并[1,2-a]喹唑啉-6-酮。通过19F和13C NMR光谱以及2D异核HetCOR和HMBC实验,证实了所获得的三环衍生物的角结构。