Stenophyllolide

(1R,8S,10S,2Z,6E)-3-(Hydroxymethyl)-7-methyl-8-hydroxy-11-methylene-13-oxabicyclo[8.3.0]tridecane-2,6-diene-12-one

(3aS,5S,6E,10Z,11aR)-3a,4,5,8,9,11a-Hexahydro-5-hydroxy-10-(hydroxymethyl)-6-methyl-3-methylenecyclodeca[b]furan-2(3H)-one