InChI=1/C14H21BrN4O/c1-8-4-3-5-12(9(8)2)18-14(20)11-6-10(15)7-17-13(11)19-16/h6-9,12H,3-5,16H2,1-2H3,(H,17,19)(H,18,20)/t8-,9+,12+/m0/s1/f/h18-19H 85A8A2B469F717FA