8(R),9(R)-9-deoxo-4''-deoxy-6,9-epoxyerythromycin A 在
碘 、
sodium acetate 、
N,N-二异丙基乙胺 作用下,
以
甲醇 、
乙腈 为溶剂,
生成 (1R,2R,3R,4S,5R,8R,9S,10S,11R,12R,14R)-5-ethyl-3,4-dihydroxy-11-[(2S,3R,4S,6R)-3-hydroxy-6-methyl-4-[methyl(propan-2-yl)amino]oxan-2-yl]oxy-9-[(2S,4S,6S)-4-methoxy-4,6-dimethyloxan-2-yl]oxy-2,4,8,10,12,14-hexamethyl-6,15-dioxabicyclo[10.2.1]pentadecan-7-one