(Z)-5-[(2R,3R,4R,5S,6S)-3-[(4-bromophenyl)methoxy]-4,5-bis(phenylmethoxy)-6-(2-phenylmethoxyethyl)oxan-2-yl]-1-[(2S,3R,6S,7R)-3-[tert-butyl(diphenyl)silyl]oxy-6-phenylmethoxy-7-(phenylmethoxymethyl)-2,3,6,7-tetrahydrooxepin-2-yl]-4-methylsulfanyl-4-methylsulfinylpent-1-en-3-ol 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
反应 2.5h,
以91%的产率得到(2S,3R,6S,7R)-6-Benzyloxy-7-benzyloxymethyl-2-{(Z)-5-[(2R,3R,4R,5S,6S)-4,5-bis-benzyloxy-6-(2-benzyloxy-ethyl)-3-(4-bromo-benzyloxy)-tetrahydro-pyran-2-yl]-3-hydroxy-4-methanesulfinyl-4-methylsulfanyl-pent-1-enyl}-2,3,6,7-tetrahydro-oxepin-3-ol