中文摘要：

保护的组 Anomala Osakana Pheromone 异构体的免费合成与高 enantioselectivity (92% ee ) 被完成了。chiral -hydroxy-,-acetylenic 酉旨被用作关键中介，它经由醛的不对称的 alkynylation 被获得。这被乐意地处理的选择加氢跟随，在三的 lactonization 与高全面的收益(86%) 走。

英文摘要：

The protecting group free synthesis of Anomala Osakana Pheromone isomer has been achieved with high enantioselectivity （92% ee）. A chiral y-hydroxy-α, β-acetylenic ester was used as the key intermediate, which was obtained via asymmetric alkynylation of aldehyde. This was followed by readily handled selective hydrogenation and lactonization in three steps with a high overall yield （86%）.