1-(3-hydroxybut-1-ynyl)-2,2,6-trimethylcyclohexane-1,4-diol

4-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)but-3-yn-2-ol

2,6,6-trimethyl-1-(3-acetoxy-but-1-ynyl)cyclohexa-1,3-diene

2,6,6-trimethyl-1-hydroxy-1-(3-acetoxy-but-1-ynyl)cyclohex-2-ene