led to the assignment of a novel spiro-skeleton to agarospirol (Ia), a sesquiterpene alcohol isolated from the essential oil of infected agarwood (Aquilaria agallocha Roxb.). The corresponding carbon skeleton (VI) has been named agarospirane. Agarospirol is the second spiro-terpenoid to be isolated from Nature. The most probable stereochemistry of agarospirol appears to be as in XXXIX.
衍生化酮(XVa)的明确合成支持的降解研究和物理测量结果导致将一种新的螺骨架分配给
琼脂螺醇(Ia),这是一种从受感染沉香木(Aquilaria agallocha Roxb。 )。相应的碳骨架(VI)被命名为
琼脂螺烷。Agarospirol是第二种从大自然中分离出来的螺
萜类化合物。
琼脂螺菌最可能的立体
化学似乎与XXXIX中的一样。