(methoxymethylene)triphenylphosphorane 、 2-oxo-6-syn-<3αβ-(tetrahydropyran-2-yloxy)-4-(3-chlorophenoxy)-1-trans-butenyl>-7-anti-(tetrahydropyran-2-yloxy)-cis-bicyclo<3.3.0>octan-3-ol 以
四氢呋喃 、
二甲基亚砜 为溶剂,
生成 2-syn-(3-methoxy-cis-propenyl)-3-anti-<3αβ-(tetrahydropyran-2-yloxy)-4-(3-chlorophenoxy)-1-trans-butenyl>-4-syn-(tetrahydropyran-2-yloxy)cyclopentan-1-ol 、
2-syn-(3-methoxy-trans-propenyl)-3-anti-<3αβ-(tetrahydropyran-2-yloxy)-4-(3-chlorophenoxy)-1-trans-butenyl>-4-syn-(tetrahydropyran-2-yloxy)cyclopentan-1-ol