作者:L. I. Kas’yan、O. V. Krishchik、I. N. Tarabara、A. O. Kas’yan、V. A. Pal’chikov
DOI:10.1134/s1070428006040051
日期:2006.4
Reactions of exo-5,6-epoxybicyclo[2.2.1]hept-5-ene-endo-2,endo-3-dicarboxylic anhydride (epoxyendic anhydride) with acyclic, aromatic, heteroaromatic, and nonaromatic heterocyclic amines afforded the corresponding heterocyclization products, substituted exo-2-hydroxy-5-oxo-4-oxatricyclo[4.2. 1.0(3,7)]nonaneendo-9-carboxamides (oxabrendanes), whose structure was confirmed by the IR and H-1 and C-13 NMR (including two-dimensional) spectra. Other approaches to the tricyclic compounds were also examined, in particular via reactions of organic peroxy acids with amido acids obtained by aminolysis of endic anhydride.