On the Unusual Propensity by the Red Seaweed Laurencia microcladia of Il Rogiolo to Form C15 Oxepanes: Isolation of Rogioloxepane A, B, C, and Their Likely Biogenetic Acyclic Precursor, Prerogioloxepane

Article abstract of DOI:10.1002/hlca.19920750128

It is shown here that the red seaweed Laurencia microcladia KUETZING, collected in the Mediterranean off the torrent Il Rogiolo, contains the C15 acetogenin rogioloxepane A (= (+)-(2R,7R)-2-(1-bromopropyl)-7-<(Z)-1-chlorohex-3-en-5-ynyl>-2,3,6,7-tetrahydr