1 WYE (2z)-4,6-dihydroxy-2-{[1-methyl-4-(4-methylpiperazin-1-yl)-1h-pyrrolo[2,3-B]pyridin-3-yl]methylidene}-1-benzofuran-3(2h)-one 1.000 2 WYF (2z)-4,6-dihydroxy-2-[(8-methoxy-1,2,3,4-tetrahydropyrazino[1,2-a]indol-10-yl)methylidene]-1-benzofuran-3(2h)-one 0.706