InChI=1S/C25H28N8O3/c34-25(28-19-7-9-26-10-8-19)27-18-3-1-17(2-4-18)22-29-23(32-11-13-35-14-12-32)31-24(30-22)33-20-5-6-21(33)16-36-15-20/h1-4,7-10,20-21H,5-6,11-16H2,(H2,26,27,28,34)/t20-,21+