%0 Journal Article %T 1,5-Diazacyclohenicosane, a New Cytotoxic Metabolite from the Marine Sponge Mycale sp. %A Laura Coello %A Mar¨ªa Jes¨²s Mart¨ªn %A Fernando Reyes %J Marine Drugs %D 2009 %I MDPI AG %R 10.3390/md7030445 %X A new cyclic diamine, 1,5-diazacyclohenicosane (1), was isolated from samples of the marine sponge Mycale sp. collected at Lamu Island (Kenya). Its structure was determined by a combination of spectroscopic techniques, including (+)-HRESIMS and 1D and 2D NMR spectroscopy. The compound displayed cytotoxicity at the ¦ÌM level against three human tumor cell lines. %K marine sponges %K alkaloids %K cytotoxicity %K Mycale sp. %U http://www.mdpi.com/1660-3397/7/3/445