phenyl 6-O-(1b,5b-anhydro-4b,6b-O-benzylidene-2b-deoxy-D-ribo-hex-1-en-3b-yl)-7-deoxy-2,3,4-tri-O-benzyl-α-D-gluco-hept-6-enopyranoside 在
anion-exchange resin IRA-400 作用下,
以
5,5-dimethyl-1,3-cyclohexadiene 为溶剂,
反应 0.33h,
以56%的产率得到phenyl 6a-C-(2b,6b-anhydro-5b,7b-O-benzylidene-1,3,4-trideoxy-α-D-glycero-D-manno-heptit-3-en-1-yl)-2,3,4-tri-O-benzyl-6-deoxy-6-oxo-α-D-mannopyranoside