InChI=1/C19H20N4O5/c24-17-15-11-1-2-12(4-3-11)16(15)18(25)22(17)10-9-20-19(26)21-13-5-7-14(8-6-13)23(27)28/h1-2,5-8,11-12,15-16H,3-4,9-10H2,(H2,20,21,26)/t11-,12+,15-,16+/f/h20-21H C6B10EA83B059C73