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A new chiral Schiff base derived from carbohydrate,methyl-4,6-O-benzylidene-3-deoxy-3-(salicylideneamino)-α-D-altropyranoside,has been synthesized by reacting methyl 3-ami-no-4,6-O-benzylidene-3-deoxy-α-D-altropyranoside with salicylaldehyde in methanol a