2,3,4-trimethyl-4-<5-(trimethylsilyl)-3-pentynyl>cyclohex-2-en-1-one

4-benzyloxymethyl-2,4-dimethyl-3-ethynyl-2-cyclohexenone

4-benzyloxymethyl-2,4-dimethyl-3-ethynyl-2-cyclohexenone ethylene ketal

8-Benzyloxymethyl-6,8-dimethyl-7-[(1E,3Z)-3-methyl-6-(2-methyl-[1,3]dioxolan-2-yl)-hexa-1,3-dienyl]-1,4-dioxa-spiro[4.5]dec-6-ene