Benzopyran
(3aS)-3,3aα,5,5aβ,6,7,8,8a-Octahydro-8aα-hydroxy-10,10-dimethyl-6α,8bα-ethano-8bH-cyclopenta[de]-2-benzopyran-1,4-dione
(4aR,4aβ,5R,5S)-5-(3-Furanyl)-4,4a,6,7,8,8a,4,5-octahydro-6α-methyl-8aβ-(1-methylethenyl)spiro[5H-1-benzopyran-5,3(2H)-furan]-2,2(3H)-dione
(7AR,8R,13AS)-REL-6,7,7A,8-TETRAHYDRO-N-(2,3,4,5,6-PENTAFLUOROPHENYL)-BENZOPYRANO[2',3':1,5]CYCLOPENTA[1,2-B][1]BENZOPYRAN-8-AMINE