The extension of our recently developed strategy using the diene 6 as a key intermediate to the synthesis of naturally occurring ring C aromatic diterpene derivatives provided compounds 1a and 2a in five steps from manool 5. However, the physical and spectroscopic properties of either of these synthetic materials did not agree with those reported for margolone, isolated from Azadirachta indica A. Juss
使用二烯6作为合成天然存在的C环芳族二萜衍
生物的关键中间产物,我们最近开发的策略的扩展提供了从manool 5开始的五个步骤的化合物1a和2a。但是,这些合成材料中的任何一种的物理和光谱性质均与报道的从印za(Azadirachta indica A. Juss)中分离出的马戈隆的那些相异。这表明分配给马戈隆的结构1a不正确,需要重新研究。