5-1''-acetoxy-6'-formyl-4-methoxy-4'-methyl-3''-methylbutyl-spiro(benzofuran-2,1'-cyclohexa-3',5'-diene)-2',3(2H)-dione
5-1''-acetoxy-6'-formyl-4-methoxy-4'-methyl-3''-methylbutyl-spiro(benzofuran-2,1'-cyclohexa-3',5'-diene)-2',3(2h)-dione