(-)-(1R)-1-methyl-3-oxopropyl-(3R,4S,5S,6R,8R,9R)-9-acetoxy-5-[2-O-acetyl-4-O-(2,6-dideoxy-3-C-methyl-4-O-propionyl-α-L-ribo-hexopyranosyl)-3,6-dideoxy-3-dimethylamino-β-D-glucopyranosyl]-6-(2,2-dimethoxyethyl)-4-methoxy-8-methyl-10-oxo-3-propionyloxydecanoate 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
乙腈 为溶剂,
反应 5.0h,
以6.07 g的产率得到(-)-(3R,4S,5S,6R,8R,9R)-9-acetoxy-5-[2-O-acetyl-4-O-(2,6-dideoxy-3-C-methyl-4-O-propionyl-α-L-ribo-hexopyranosyl)-3,6-dideoxy-3-dimethylamino-β-D-glucopyranosyl]-6-(2,2-dimethoxyethyl)-4-methoxy-8-methyl-10-oxo-3-propionyloxydecanoic acid