InChI=1/C15H26N4O2/c1-18(2)7-4-8-19(9-10-21-3)15(20)14-11-13(16-17-14)12-5-6-12/h11-12H,4-10H2,1-3H3,(H,16,17)/p+1/fC15H27N4O2/h17-18H/q+1 A52D6DD6BC3E13C7