Two new polycyclic aromatic alkaloids from the Okinawan marine sponge Biemna sp.
作者:Chun-min Zeng、Masami Ishibashi、Keita Matsumoto、Shiro Nakaike、Jun'ichi Kobayashi
DOI:10.1016/s0040-4020(01)81917-7
日期:1993.1
Two new polycyclic aromatic alkaloids, biemnadin (1) and 8,9-dihydro-11-hydroxyascididemin (2), have been isolated from the Okinawan marine sponge Biemna sp. The X-ray diffraction analysis of 1 has established its octacyclic structure and the structure of 2 elucidated on the basis of extensive spectroscopic and chemical studies.
从冲绳海洋海绵Biemna sp。中分离出了两个新的多环芳族生物碱biemnadin(1)和8,9-dihydro-11-hydroxyascididemin(2)。在广泛的光谱学和化学研究的基础上,对1的X射线衍射分析确定了其八环结构,并阐明了2的结构。