CARBOHYDRATE-LIKE CHIRAL SYNTHONS: SYNTHESIS OF THE N-TRIFLUOROACETYL DERIVATIVES OF 4-AMINO-2,4,6-TRIDEOXY-L-LYXO-, -L-ARABINO, AND -L-RIBO-HEXOSE FROM THE (2S,3R)-2,3-DIOL FORMED FROM CINNAMALDEHYDE IN FERMENTING BAKER′S YEAST