InChI=1/C22H26N4O2/c1-16-6-5-9-19(17(16)2)25-12-10-24(11-13-25)15-22(28)26-14-21(27)23-18-7-3-4-8-20(18)26/h3-9H,10-15H2,1-2H3,(H,23,27)/f/h23H 7ECA9CB768A6C7CC