4-Methyl-4-(3-oxo-oct-7-enyl)-6,7-dihydro-4H-isobenzofuran-5-one

4-Methyl-6,7-dihydro-4H-isobenzofuran-5-one

9a-Methyl-4,5,5a,8,9,9a-hexahydro-furo[3,4-f]chromen-7-one

4,5,7,8,9,9a-hexahydro-6,9a-dimethylnaphtho<1,2-c>furan-7-one

5a-Methyl-3,4,6,7-tetrahydro-5aH-naphtho[1,8-bc]furan-5,8-dione