6-azido-2,3,4-tri-O-benzyl-6-deoxy-β-L-idopyranosyl chloride 、 4',6'-di-O-benzoyl-5-O-(5-O-benzoyl-β-D-ribofuranosyl)-3,2'-bis(N-benzyloxycarbonyl)-1-N:6-O-carbonyl-3'-deoxyparomamine 在
calcium sulfate 、
氰化汞 作用下,
以
苯 为溶剂,
以19%的产率得到5-O-<3-O-(6-azido-2,3,4-tri-O-benzyl-6-deoxy-β-D-idopyranosyl)-5-O-benzoyl-β-D-ribofuranosyl>-4',6'-di-O-benzoyl-3,2'-bis(N-benzyloxycarbonyl)-1-N:6-O-carbonyl-3'-deoxyparomamine