(6-azido-6-deoxy-2,3:4,5-di-O-isopropylidene-D-galactonyl)-D-phenylalanine-(6-amino-6-deoxy-2,3:4,5-di-O-isopropylidene-D-galactonyl)-D-phenylalanine-(6-amino-6-deoxy-2,3:4,5-di-O-isopropylidene-D-galactonyl)-D-phenylalanine pentafluorophenyl ester 在
氢气 、
钯 作用下,
以
1,4-二氧六环 为溶剂,
反应 15.0h,
以20%的产率得到cyclo[(6-amino-6-deoxy-2,3:4,5-di-O-isopropylidene-D-galactonyl)-D-phenylalanine-(6-amino-6-deoxy-2,3:4,5-di-O-isopropylidene-D-galactonyl)-D-phenylalanine-(6-amino-6-deoxy-2,3:4,5-di-O-isopropylidene-D-galactonyl)-D-phenylalanine]