4-Benzyl-5-(2-tetrahydropyranyloxy)-7-<3-oxo-7-(2-tetrahydropyranyloxy)-2-oxa-6-bicyclo<3.3.0>octyl>-6-heptennitril 在
红铝 作用下,
以
甲苯 为溶剂,
反应 6.0h,
以100%的产率得到(E)-4-Benzyl-7-[(3aS,5S,6aR)-2-hydroxy-5-(tetrahydro-pyran-2-yloxy)-hexahydro-cyclopenta[b]furan-4-yl]-5-(tetrahydro-pyran-2-yloxy)-hept-6-enenitrile