8-isopropyl-1,1-dimethoxy-6-[(1E,3E)-4-(4-methoxyphenyl)buta-1,3-dien-1-yl]-11-methylheptaleno[4,5-c]furan-3(1H)-one

methyl 4-formyl-9-isopropyl-1-[(1E,3E)-4-(4-methoxyphenyl)buta-1,3-dien-1-yl]-6-methylheptalene-5-carboxylate