obovata afforded, in addition to known thymol derivatives, one new ester. Furthermore six new chromone derivatives, all prenylated, were present together with the known spathelia chromene. The main constituent was a flavan already isolated from M. grandiflora but five new flavans were also isolated. Besides other widespread compounds a tetraester of inositol was isolated in minute amounts. All the
摘要 除已知
百里酚衍
生物外,对Marshallia obovata 的研究还提供了一种新的酯。此外,还有六种新的
色酮衍
生物,全部
异戊二烯化,与已知的绿萝色烯一起存在。主要成分是已经从大花木兰中分离出的一种黄烷,但也分离出了五种新的黄烷。除了其他广泛使用的化合物外,还可以分离出微量的肌醇四酯。通过光谱方法或
化学转化阐明了所有结构。令人惊讶的是,即使是主要的 4-甲氧基黄烷也可以被
高碘酸分解。