InChI=1/C23H20N2O7/c1-10-5-18(27)31-17-7-13(26)21-20(12(9-24)23(25)32-22(21)19(10)17)11-6-15(29-3)16(30-4)8-14(11)28-2/h5-8,20,26H,25H2,1-4H3/t20-/m1/s1	5664C5831C2BA0AF