lithio-1 methyl-2 trimethylsiloxy-4 butadiene

6-methyl-8-(2,6,6-trimethylcyclohexen-1-yl)octa-3,5,7-trien-2-one

3-Methyl-1-(2,6,6-trimethyl-cyclohexen-1-yl)-heptatrien-1,3,5-saeure-7-nitril