InChI=1S/C21H26N4O2/c1-14-6-7-16(20(26)23-11-10-15-4-2-3-5-15)12-18(14)21(27)25-17-8-9-19(22)24-13-17/h6-9,12-13,15H,2-5,10-11H2,1H3,(H2,22,24)(H,23,26)(H,25,27)