2-(4,5-Dihydro-thiazol-2-yl)-2,4,4-trimethyl-cyclopentanone

3,5,5-trimethylcyclohex-1-ene

4,6,6-trimethylcyclohex-2-en-1-one

3,3,5-三甲基环已醇

1,4,4-trimethyl-2-oxo-cyclopentanecarboxylic acid ethyl ester