(3S,4S,5S)-6-(tert-butyldimethylsilyloxy)-4,5-di-(4-methoxyphenylmethoxy)-1-triphenylmethoxy-2-hexanon-3-yl 2,3,5-O-tri-(4-methoxyphenylmethyl)-6-O-triphenyl methyl-α-D-galactopyranoside 在
吡啶 、 Tebbe's reagent 作用下,
以
甲苯 为溶剂,
反应 1.25h,
以65%的产率得到(3S,4S,5S)-6-(tert-butyldimethylsilyloxy)-4,5-di-(4-methoxyphenylmethoxy)-2-triphenylmethoxy-hex-1-en-3-yl 2,3,4-tri-O-(4-methoxyphenylmethyl)-6-O-triphenylmethyl-α-D-galactopyranoside