3',3',6'-Trimethyl-3'a,4',5',7'a-tetrahydro-3'H-spiro[cyclohex-3-ene-1,1'-isobenzofuran]-2,5-dione Conidione InChI=1/C16H20O3/c1-10-4-6-12-13(8-10)16(19-15(12,2)3)9-11(17)5-7-14(16)18/h5,7-8,12-13H,4,6,9H2,1-3H3/t12-,13+,16+/m0/s rel-(1R,3aS,7aR)-3,3,6-trimethyl-3a,4,5,7a-tetrahydro-2'H,3H,5'H-spiro[2-benzofuran-1,1'-cyclohex[3]ene]-2',5'-dione spiro[cyclohex-3-ene-1,1'(3'H)-isobenzofuran]-2,5-dione, 3'a,4',5',7'a-tetrahydro-3',3',6'-trimethyl-, (1R,3a'S,7a'R)-