InChI=1S/C19H26N6O/c1-4-15(12-26)22-18-23-17-16(13(2)3)11-21-25(17)19(24-18)20-10-14-8-6-5-7-9-14/h5-9,11,13,15,26H,4,10,12H2,1-3H3,(H2,20,22,23,24)/t15-/m1/s1