(E)-2,4,5,7-tetramethyl-2,4,6-octatriene

(4R,5S)-2,4,5,7-tetramethylocta-2,6-diene-4,5-diol

2,3,3,5-tetramethyl-2-(2-methylprop-1-enyl)furan

4-methyl-4-prop-2-ynoxypentan-2-ol

4-methyl-4-prop-2-ynoxypentan-2-one