triethyl-[(3S,4S,5S,6S)-5-[(4-methoxyphenyl)methoxy]-2-methylidene-4-phenylmethoxy-6-(2-phenylmethoxyethyl)oxan-3-yl]oxysilane 、
[(1R,3S,8S,9S,10R,12S,13S,14S)-12-cyclohexyl-9-phenylmethoxy-13,14-bis(triethylsilyloxy)-2,7,11-trioxatricyclo[8.4.0.03,8]tetradec-5-en-6-yl] trifluoromethanesulfonate 在
palladium diacetate
9-硼双环[3.3.1]壬烷 、
2-双环己基膦-2',6'-二甲氧基联苯 、
potassium hydrogencarbonate 作用下,
以
四氢呋喃 为溶剂,
反应 51.0h,
以78%的产率得到[(1S,3R,4S,5S,6S,8R,9S,10S)-6-cyclohexyl-12-[[(2R,3R,4S,5S,6S)-5-[(4-methoxyphenyl)methoxy]-4-phenylmethoxy-6-(2-phenylmethoxyethyl)-3-triethylsilyloxyoxan-2-yl]methyl]-9-phenylmethoxy-4-triethylsilyloxy-2,7,11-trioxatricyclo[8.4.0.03,8]tetradec-12-en-5-yl]oxy-triethylsilane