3-[(2,4-dimethoxyphenyl)-(4-hydroxy-2-oxochromen-3-yl)methyl]-4-hydroxychromen-2-one

华法林

4-hydroxy-3-[(4-hydroxy-2-oxochromen-3-yl)-(2-nitrophenyl)methyl]chromen-2-one

3-(4,4-dimethyl-3-methylidenepentyl)-4-hydroxychromen-2-one

4-hydroxy-3-[(4-hydroxy-2-oxochromen-3-yl)-pyridin-3-ylmethyl]chromen-2-one