Stoloniolide I and II, new marine lactonic steroids with an unprecedented 1,10-secoergostane skeleton, isolated from the Okinawan soft coral, Clavularia viridis
Two novel lactonic steroids, stoloniolide I and II, were isolated from the Okinawan soft coral, Clavularia viridis Quoy and Gaimard. Their structures were determined by spectroscopic analysis. They each possessed a unique 1,10-secoergostane skeleton unprecedented in the field of steroids.