1,3-bis[2-(5,6-didehydro-5,6-dideoxy-1,2-O-isopropylidene-α-D-xylohexofuranos-3-O-yl)methylphenoxy]propane 在
Grubbs catalyst first generation 作用下,
以
二氯甲烷 为溶剂,
反应 10.0h,
以95%的产率得到(2R,3R,3aS,20aS,21R,22R,23aR,25aR)-(2,3:21,22-diisopropylidenedioxy)-2,3,3a,20a,21,22,23a,25a-octahydrodibenzo[c,j]difuro[2,3-n:3,2-r][1,5,9,13]tetraoxacyclononadeca-5a,14a,20a,24,25a-pentaene