InChI=1S/C17H27BrN4O2/c1-5-22-7-6-21(3)10-12(11-22)20-17(23)13-8-14(18)15(19-2)9-16(13)24-4/h8-9,12,19H,5-7,10-11H2,1-4H3,(H,20,23)/t12-/m1/s1