(1R,3R,4R,5S,11S,13R,15S,17R,19Z,21S,22R,24S)-4-(naphthalen-2-ylmethoxy)-22-prop-2-enyl-2,6,12,16,23-pentaoxapentacyclo[13.11.0.03,13.05,11.017,24]hexacosa-8,19,25-trien-21-ol 、
[(1R,3S,5R,6S,7S,8R,10S,11S,12S,13R,15S,17R,19R,21S,22R,24S)-21-[(1R)-3-chloro-1-(naphthalen-2-ylmethoxy)-3-phenylsulfanylpropyl]-6,7,12,17,21-pentamethyl-11-(naphthalen-2-ylmethoxy)spiro[4,9,14,20,25-pentaoxapentacyclo[13.10.0.03,13.05,10.019,24]pentacosane-8,2'-oxolane]-22-yl]oxy-tri(propan-2-yl)silane 在
2,6-二叔丁基-4-甲基吡啶 、
silver trifluoromethanesulfonate 作用下,
以
四氯化碳 、
二氯甲烷 为溶剂,
以23.5 mg的产率得到[(1R,3S,5R,6S,7S,8R,10S,11S,12S,13R,15S,17R,19R,21S,22R,24S)-6,7,12,17,21-pentamethyl-11-(naphthalen-2-ylmethoxy)-21-[(1R)-1-(naphthalen-2-ylmethoxy)-3-[[(1R,3R,4R,5S,11S,13R,15S,17R,19Z,21S,22R,24S)-4-(naphthalen-2-ylmethoxy)-22-prop-2-enyl-2,6,12,16,23-pentaoxapentacyclo[13.11.0.03,13.05,11.017,24]hexacosa-8,19,25-trien-21-yl]oxy]-3-phenylsulfanylpropyl]spiro[4,9,14,20,25-pentaoxapentacyclo[13.10.0.03,13.05,10.019,24]pentacosane-8,2'-oxolane]-22-yl]oxy-tri(propan-2-yl)silane