InChI=1S/C23H17NO6/c25-20(26)12-16(10-14-6-3-5-13-4-1-2-7-17(13)14)24-21(27)18-9-8-15(23(29)30)11-19(18)22(24)28/h1-9,11,16H,10,12H2,(H,25,26)(H,29,30)/t16-/m1/s1