1-(4,7-dimethoxyfuro[2,3-b]quinolin-2-yl)ethanone InChI=1/C15H13NO4/c1-8(17)13-7-11-14(19-3)10-5-4-9(18-2)6-12(10)16-15(11)20-13/h4-7H,1-3H ethanone, 1-(4,7-dimethoxyfuro[2,3-b]quinolin-2-yl)-