InChI=1S/C17H22N8O2S/c18-11-1-3-12(4-2-11)22-15-9-16(25-17(24-15)20-10-21-25)23-13-5-7-14(8-6-13)28(19,26)27/h5-12,23H,1-4,18H2,(H2,19,26,27)(H,20,21,22,24)/t11-,12-