InChI=1/C16H26N4O2/c21-15-18-14-13(19(15)11-7-3-1-4-8-11)17-16(22)20(14)12-9-5-2-6-10-12/h11-14H,1-10H2,(H,17,22)(H,18,21)/t13-,14-/m0/s1/f/h17-18H 811A09B691BC625B