(E)-3,4-diphenyl-2-methyl-2-butenoic acid ethyl ester
2-Methyl-4-((1'R)-2',2',4'-trimethyl-3'-oxocyclohexyl)-2-butensaeure-ethylester
(Z)-ethyl-2-methyl-5-(2,4,4-trimethyl-6-oxo-1-cyclohex-1-enyl)-2-pentenoate
(Z)-ethyl-2-methyl-5-(3,4,6,6-tetramethyl-2-oxo-1-cyclohex-3-enyl)-2-pentenoate
(Z)-2-Methyl-5-(3,4,6,6-tetramethyl-2-methylene-cyclohex-3-enyl)-pent-2-enoic acid ethyl ester