1,2-O-isopropylidene-3-O-benzyl-6-azido-6-deoxy-β-L-idofuranose 、
3-phenyl-1-[4-(trifluoromethyl)phenyl]prop-2-yn-1-one 在
三丁基膦 作用下,
以
甲苯 为溶剂,
以42%的产率得到(2R)-2-[(3aR,5S,6S,6aR)-6-(benzyloxy)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl]-7-phenyl-5-[4-(trifluoromethyl)phenyl]-2,3-dihydro-1,4-oxazepine