allyl (2-N-acetamido-2-deoxy-3,4,6-tri-O-acetyl-α-D-galactopyranosyl)-(1->4)-2-N-acetamido-2-deoxy-3,6-di-O-benzyl-β-D-galactopyranoside 、
tert-butylpent-4-enyloxydimethylsilane 在
Grubbs catalyst first generation 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
以87%的产率得到6-[(1,1-dimethylethyl)dimethylsilyloxy]-hex-2-enyl (2-N-acetamido-2-deoxy-3,4,6-tri-O-acetyl-α-D-galactopyranosyl)-(1->4)-2-N-acetamido-2-deoxy-3,6-di-O-benzyl-β-D-galactopyranoside