1-((4S,5S)-2,2-Dimethyl-5-pent-3-ynyl-[1,3]dioxolan-4-ylmethyl)-cyclohexa-2,5-dienecarboxylic acid

Methyl 1-{[(4S,5S)-2,2-dimethyl-5-(pent-3-ynyl)-1,3-dioxolan-4-yl]methyl}-6-[(E)-oct-6-en-1-yl]-4-oxocyclohex-2-ene-1-carboxylate