Author/Authors :
Mylene M. Uy، نويسنده , , Shinji Ohta، نويسنده , , Mihoko Yanai، نويسنده , , Emi Ohta، نويسنده , , Toshifumi Hirata، نويسنده , , Susumu Ikegami، نويسنده ,
Abstract :
A new nitrogen-containing bicyclic spirosesquiterpene designated exiguamide which inhibited cell fate specification during sea urchin embryogenesis has been isolated from the marine sponge Geodia exigua. Its structure was determined by interpretation of spectral data and X-ray crystallographic analysis.