(2aR,2bR,5aR,6aR)-6a-((R)-1,2-Bis-benzyloxy-ethyl)-1,1-dichloro-4,4-dimethyl-tetrahydro-3,5,6-trioxa-cyclobuta[a]pentalen-2-one 在
锌 作用下,
以
溶剂黄146 为溶剂,
以37%的产率得到(2aR,2bR,5aR,6aR)-6a-((R)-1,2-Bis-benzyloxy-ethyl)-4,4-dimethyl-tetrahydro-3,5,6-trioxa-cyclobuta[a]pentalen-2-one