InChI=1/C23H22N2O6/c1-28-14-13-20-21(16-9-11-18(12-10-16)25(26)27)19(15-24)22(17-7-5-4-6-8-17)31-23(20,29-2)30-3/h4-14,20-21H,1-3H3/b14-13+/t20-,21-/m1/s1 6AED4F91FF1A967D