Synthesis of optically active myo-inositol derivatives starting from phytic acid

Phytic acid treated with Bakerʹs yeast gave d-myo-inositol-1,2,6-tris(phosphate) (α-trinositol) which was transformed into (+)-d-1,2-O-isopropylidene-myo-inositol and (−)-d-3,4,5-tri-O-benzyl-myo-inositol, two key intermediates in the synthesis of optically active myo-inositol derivatives and related compounds.