InChI=1/C19H20N4O5/c20-19(26)21-13(10-12-6-2-1-3-7-12)17(24)22-23-18(25)16-11-27-14-8-4-5-9-15(14)28-16/h1-9,13,16H,10-11H2,(H,22,24)(H,23,25)(H3,20,21,26)/t13-,16-/m1/s1/f/h21-23H,20H2 95EF07204955F5B8