6-deoxy-6-(N-hydroxyimino)-1,2:3,4-di-O-isopropylidene-α-D-galactopyranose 、 perbenzoyl D-ribosyl ortho-hexynylbenzoate 在
trifluoromethanesulfonyloxy(triphenylphosphine)gold(I) 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
以50%的产率得到6-deoxy-6-(2',3',5'-tri-O-benzoyl-β-D-ribofuranosyl-(Z)-hydroxyimino)-1,2;3,4-di-O-isopropylidene-α-D-galactopyranoside