4-methyl-2,6-di(propan-2-yl)pyridine

tetramethyl-2,5,5,7-octene-2-dione-4,6

dimethyl-2,5-isobutyroyl-3-hexadiene-2,4

ethyl 3,3,6-trimethylhept-4-enoate

2,5-dimethylhex-4-en-3-ol