(S)-4-[(1S,2S,3S,4R)-1,3-Bis-benzyloxy-4-((2R,3S,4R,5S)-4-benzyloxy-5-bromomethyl-3,5-dimethyl-tetrahydro-furan-2-yl)-2-hydroxymethyl-5-methoxymethoxy-pentyl]-4-methyl-[1,3]dioxolan-2-one 在
咪唑 、
碘 、
三苯基膦 作用下,
以
苯 为溶剂,
以80%的产率得到(S)-4-[(1S,2S,3S,4R)-1,3-Bis-benzyloxy-4-((2R,3S,4R,5S)-4-benzyloxy-5-bromomethyl-3,5-dimethyl-tetrahydro-furan-2-yl)-2-iodomethyl-5-methoxymethoxy-pentyl]-4-methyl-[1,3]dioxolan-2-one