2,3-dimethoxy-4b,11b,12,13-tetrahydro-benzo[c][1,3]dioxolo[4,5-j]phenanthridine

2-isopropylidene-5-methyl-cyclopentanecarboxylic acid

3-isopropyl-1-methyl-cyclopentene

1-isopropyl-3-methyl-cyclopenta-1,3-diene

1-hydroxy-1-methyl-3-isopropyl-cyclopentene-(2)