2,3,5-tri-O-benzoyl-β-D-ribofuranosyl bromide 、
7-chloro-2,2,4-trimethyl-2,3-dihydro-1H-benzo[b][1,4]diazepine 反应 4.5h,
以85%的产率得到(2R,3R,4R,5R)-2-((benzoyloxy)methyl)-5-(7-chloro-2,2,4-trimethyl-2,3-dihydro-1H-benzo[b][1,4]diazepin-1-yl)tetrahydrofuran-3,4-diyl dibenzoate