trans-3-hydroxy-2-methylcyclohexanone
ethyl (2-methyl-3-oxo-cyclohexylidene) acetate
ethyl (2-methyl-3-vinyl-3-hydroxycyclohexylidene) acetate
ethyl (2-methyl-3-ethynyl-3-hydroxy cyclohexylidene) acetate
allyl {6-methyl-1,4-dioxaspiro[4.5]dec-6-en-7-yl} carbonate