Synthesis of galactosaminyl d-chiro-inositols

All six isomeric d-galactosaminopyranosyl-d-chiro-inositols have been prepared by glycosylation of appropriate penta-O-benzyl-d-chiro-inositols. The three requisite protected d-chiro-inositols were prepared by SmI2-promoted pinacol coupling of dialdehydes derived ultimately from l-arabinose.

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