caulerpenyne

(1E,4S,6E)-1,4-Diacetoxy-3-[(Z)-acetoxymethylene]-7,11-dimethyl-1,6,10-dodecatriene-8-yne

(S,1E,6E)-3-[(Z)-Acetoxymethylene]-7,11-dimethyl-1,6,10-dodecatrien-8-yne-1,4-diol diacetate