摘要:
Reactions of azide ion with three disulfonates (1,4-, 1,5-, and 1,6-) of myo-inositol and its 1,2-O-cyclohexylidene derivative were studied. The structures of the new azido compounds thus obtained were established by PMR spectroscopy and reaction sequences. The reaction mechanisms of the neighboring-group participation reactions were discussed. Hydrogenation of the azido compounds followed by acetylation afforded the corresponding six inosadiamines as their hexaacetates: three known (allo-1,5, muco-1,3, and myo-4,5) and three hitherto unknown inosadiamines (allo-1,4, muco-1,2, and chiro-2,4).