(2S,3S,4R,5R)-6-(2,2,2-trichloroacetimidoyloxy)-tetrahydro-5-methoxy-2,4-dimethyl-3-triisopropylsilanyloxy-2H-pyran-4-ol 、
(-)-(1S(1R*,5S*,9S*,10S*,11S*,12S*,13R*)7E)-5-[(1E,3E)-6-((1R*,2S*)-2-chlorocyclopropyl)-1,3-hexadien-5-ynyl]-1,13-dihyroxy-9-methoxy-7,10,12-trimethyl-4-15-dioxabicyclo[9.3.1]pentadec-7-en-3-one 在
三氟甲磺酸三甲基硅酯 、
三乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以70%的产率得到(1S,5R,7E,9R,10R,11R,12R,13S)-13-((3R,4R,5S,6S)-tetrahydro-4-hydroxy-5-(triisopropylsilanyloxy)-3-methoxy-4,6-dimethyl-2H-pyran-2-yloxy)-5-[(1E,3E)-6-((1S,2S)-2-chlorocyclopropyl)hexa-1,3-dien-5-yn-1-yl]-1-hydroxy-9-methoxy-7,10,12-trimethyl-4,15-dioxa-bicyclo[9.3.1]pentadec-7-en-3-one