(R)-4-甲酰基-2,2-二甲基噁唑啉-3-羧酸苄酯 、
2-oxo-3-(2',3',4',6'-tetra-O-benzyl-α-D-glucopyranosyl)propylidenetriphenylphosphorane 以
乙腈 为溶剂,
反应 120.0h,
以88%的产率得到(3E)-5-amino-1-C-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-5-N-benzyloxycarbonyl-1,3,4,5-tetradeoxy-5,6-N,O-isopropylidene-D-glycero-hex-3-eno-2-ulose