L. Gotze et al., Heterocyclic tricycles as internal N-glycosides from 2-methyl-5-nitro-6-(2-nitrophenyl)-4-phenyl(2-furyl) tetrahydropyranols, MOLECULES, 5(3), 2000, pp. 245-251
1-Methyl-10-nitro-11-phenyl(2-furyl)-2-aza-13-oxa-tricyclo[7.3.1.0(3,8)]tri
deca-3,5,7- trienes 3 were synthesized via the reduction of the aromatic 2-
nitro group of 2-methyl-5-nitro-6-(2-nitrophenyl) -4-phenyl(2-furyl)tetrahy
dropyranols 2 and subsequent condensation with their anomeric OH group. As
by-products, the corresponding 6-(2-aminophenyl)-2-methyl-5-nitro-4-phenyl(
2-furyl)tetrahydropyranols 4 were isolated.