Asterolide
(3aR,4aS,8aR,9aR,E)-3-(3-methyl-4-fluorobenzylidene)-8a-methyl-5-methylidenedecahydronaphtho[2,3-b]furan-2(3H)-one
(4aS,8aR,9aS)-3-(3-methyl-4-fluorobenzyl)-8a-methyl-5-methylidene-4a,5,6,7,8,9,9a-octahydronaphtho[2,3-b]furan-2(4H)-one
1-(4-fluoro-3-methylphenyl)ethanone