InChI=1S/C23H19NO5/c1-12(25)7-17-21-14(5-6-18-23(21)29-11-26-18)15-4-3-13-8-19-20(28-10-27-19)9-16(13)22(15)24(17)2/h3-6,8-9,17H,7,10-11H2,1-2H3