InChI=1/C20H17NO4/c1-2-25-20(24)16-11-21(19(23)18(16)22)17-14-9-5-3-7-12(14)13-8-4-6-10-15(13)17/h3-10,17,22H,2,11H2,1H3/p-1/fC20H16NO4/h22h/q-1 1EB7FCB75D4CC613