1,3-Dipolar Cycloaddition Reactions to Galanthamine Nitrone: An Entry to 4a,5,9,10-Tetrahydro-6H,14aH-benzofuro[3a,3,2-ef]isoxazolo[3,2-a][2]benzazepines

Starting with galanthamine nitrone as the 1,3-dipole derivatives of the novel 4a,5,9,10-tetrahydro-6H,14aH-benzofuro[3a,3,2-ef]isoxazolo[3,2-a][2]-benzazepine ring system have been prepared by cycloaddition.