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 在
sodium tetrahydroborate 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
以86%的产率得到phenyl 6a-C-(2b,5b-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-(R,S)-hydroxy-α-D-mannopyranoside