溴甲苯 、 (1R,2S,3R,4R,5R)-4-Azido-2-((4aR,6S,7R,8S,8aR)-7,8-bis-benzyloxy-2,2-dimethyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-6,8-dioxa-bicyclo[3.2.1]octan-3-ol 在
sodium hydride 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以99%的产率得到(4aR,6S,7R,8S,8aR)-6-((1R,2S,3R,4R,5R)-4-Azido-3-benzyloxy-6,8-dioxa-bicyclo[3.2.1]oct-2-yloxy)-7,8-bis-benzyloxy-2,2-dimethyl-hexahydro-pyrano[3,2-d][1,3]dioxine