InChI=1/C19H27BrN4O3/c1-3-23(4-2)11-6-10-21-17(25)7-5-12-24-18(26)15-13-14(20)8-9-16(15)22-19(24)27/h8-9,13H,3-7,10-12H2,1-2H3,(H,21,25)(H,22,27)/p+1/fC19H28BrN4O3/h21-23H/q+1 6F9DB9C1AB1AAD24