(1S
*,2R
*,3R
*,5R
*,6R
*)-2,5-bis<(tert-butyldimethylsilyl)oxy>-3-ethynyl-3-(methanesulfinoyl)-7-oxabicyclo<4.1.0>heptane 在
异丙基锂 作用下,
生成
(1S*,2S*,5R*,6R*)-2,5-bis<(tert-butyldimethylsilyl)oxy>-3-ethenylidene-7-oxabicyclo<4.1.0>heptane 、 (1S
*,2R
*,3R
*,5R
*,6R
*)-2,5-bis<(tert-butyldimethylsilyl)oxy>-3-ethynyl-7-oxabicyclo<4.1.0>heptan-3-ol 、 (1S*,2R*,5R*,6R*)-2,5-bis<(tert-butyldimethylsilyl)oxy>-3-(3-methylbuta-1,3-dienylidene)-7-oxabicyclo<4.1.0>heptane