InChI=1/C19H18N4O5/c1-14-20-13-18(23(26)27)21(14)10-11-28-19(15-6-3-2-4-7-15)16-8-5-9-17(12-16)22(24)25/h2-9,12-13,19H,10-11H2,1H3/t19-/m1/s1 71F25CDD507BFFE1