label: 1-(6-(4-bromophenyl)furo(2,3-d)pyrimidin-2-on-3-yl)-2-(2',3'-di-O-benzyl-2'-buten-4'-olidylidene)ethane
label_lc: 1-(6-(4-bromophenyl)furo(2,3-d)pyrimidin-2-on-3-yl)-2-(2',3'-di-o-benzyl-2'-buten-4'-olidylidene)ethane