2,3,5-tri-O-benzoyl-β-D-ribofuranosyl bromide 、
7'-chloro-1',2',3',4',10',11a'-hexahydrospiro[cyclohexane-1,11'-dibenzo[b,e][1,4]diazepine] 反应 4.5h,
以85%的产率得到(2R,3R,4R,5R)-2-((benzoyloxy)methyl)-5-(7'-chloro-1',3',4',11a'-tetrahydrospiro[cyclohexane-1,11'-dibenzo[b,e][1,4]diazepin]-10'(2'H)-yl)tetrahydrofuran-3,4-diyl dibenzoate