3-[[9,10-dioxo-4-(4-oxobutan-2-ylamino)anthracen-1-yl]amino]butanal

3-[[9,10-dioxo-5-(4-oxobutan-2-ylamino)anthracen-1-yl]amino]butanal

3-[[9,10-dioxo-8-(4-oxobutan-2-ylamino)anthracen-1-yl]amino]butanal

6-(ethylamino)-4-(3-methoxypropyl)-1,4-benzoxazin-3-one

4-hydroxy-5-methoxy-3-methyl-3H-benzo[f][2]benzofuran-1-one