An Enantiospecific Approach to the 5-8-5 Tricyclic System of Basmanes

[摘要]：An enantiospecific synthesis of the 5-8-5 tricyclic ring system present in the basmane diterpenes has been accomplished, starting from ethyl 3-isopropyl-2-methylene-1-methylcyclopentane-acetate [readily available in five steps from (R)-limonene] employing an RCM reaction for the annulation of cyclooctane and an intramolecular rhodium carbenoid CH insertion reaction for the construction of the cyclopentane ring.

[全文传递流程]：

一般上传文献全文的时限在1个工作日内