6,11-dihydroxy-3,8,10-trimethoxy-1-methyl-12H-benzo[b]xanthen-12-one

11-hydroxy-3,8,10-trimethoxy-1-methylbenzo[b]xanthen-12-one

2,3-dihydro-5,8-dihydroxy-6,6-dimethoxy-4'-methylnaphthalene-2-spiro-2'-2'H-benzofuran-1,3',4-trione

7-methoxy-5-methyl-chromen-4-one

4,5,7-trimethoxyisobenzofuran-1,3-dione