(3R,3aS,4S,5R,6S,7aR)-5-ethyl-4-[2-[5-(3-fluorophenyl)pyridin-2-yl]ethenyl]-3,6-dimethyl-3a,4,5,6,7,7a-hexahydro-3H-2-benzofuran-1-one 在
lithium hexamethyldisilazane 、
(1S)-(+)-10-樟脑磺哑嗪 作用下,
以
四氢呋喃 为溶剂,
反应 0.75h,
以69%的产率得到(3R,3aR,4S,5R,6S,7aS)-5-ethyl-4-[2-[5-(3-fluorophenyl)pyridin-2-yl]ethenyl]-7a-hydroxy-3,6-dimethyl-3,3a,4,5,6,7-hexahydro-2-benzofuran-1-one