InChI=1/C18H21BrN4O4/c1-18(11-5-4-6-12(19)9-11)15(25)23(17(27)22-18)10-14(24)21-16(26)20-13-7-2-3-8-13/h4-6,9,13H,2-3,7-8,10H2,1H3,(H,22,27)(H2,20,21,24,26)/t18-/m1/s1/f/h20-22H	8F52C89363511830