tert-butyl (1S,3S,4S,5R,6R,7R)-6,7-diacetyloxy-1-[(4R,5R)-4-acetyloxy-5-methyl-6-phenylhexyl]-4-ethenyl-4-hydroxy-5-(hydroxymethyl)-2,8-dioxabicyclo[3.2.1]octane-3-carboxylate 在
戴斯-马丁氧化剂 作用下,
以94%的产率得到(1S,3S,4S,5R,6R,7R)-1-((4R,5R)-4-acetoxy-5-methyl-6-phenylhexyl)-3-(tert-butoxycarbonyl)-5-formyl-4-hydroxy-4-vinyl-2,8-dioxabicyclo[3.2.1]octane-6,7-diyl diacetate