Seco-Macrosphelide E (I) has been isolated from a strain of Periconia byssoides originally sepd. from the sea hare Aplysia kurodai. Its abs. stereostructure, with the same configuration as that of macrosphelide E, have been elucidated on the basis of spectroscopic analyses and unambiguous synthesis.
(2002), 50(2), 303-306