(Z)-(2S,3S,4S)-3-(p-methoxybenzyloxy)-2,4-dimethyl-octa-5,7-dienal 、
4-methoxy-2,6-dimethylphenyl (4Z,6S,7R,8S)-7-(t-butyldimethylsilyloxy)-9-(p-methoxybenzyloxy)-4,6,8-trimethylnon-4-enoate 在
2,2,6,6-tetramethylpiperidinyl-lithium 、 camphor-10-sulfonic acid 作用下,
以
四氢呋喃 为溶剂,
反应 1.25h,
生成 (4-methoxy-2,6-dimethylphenyl)(2S,3S,4S,5S,6S,7Z)-2-[(2Z,4S,5R,6S)-5-(t-butyldimethylsilyloxy)-7-(p-methoxybenzyloxy)-2,4,6-trimethyl-hept-2-enyl]-3-hydroxy-5-(p-methoxybenzyloxy)-4,6-dimethyl-deca-7,9-dienoate