82679-43-4 Chamaedroxide InChI=1/C20H22O7/c1-10-4-15-19-9-25-17(23)20(19,27-15)6-12(21)5-14(19)18(10)7-13(26-16(18)22)11-2-3-24-8-11/h2-3,8,10,12-15,21H,4-7,9H2,1H3/t10-,12+,13+,14-,15-,18-,19+,20-/m1/s bicyclo[3.3.1]non-3-ene-2,9-dione, 3-benzoyl-4-hydroxy-8,8-dimethyl-1,5,7-tris(3-methyl-2-butenyl)-, (5R,7S)- rel-(3aR,5R,5'R,6aR,7S,8S,10S,10aS)-5'-(3-furyl)-5-hydroxy-8-methyloctahydro-8H-spiro[3a,10-epoxynaphtho[1,8a-c]furan-7,3'-furan]-2',3-dione