InChI=1/C16H15BrN4O/c1-2-3-12-14-13(9-4-6-10(17)7-5-9)11(8-18)15(19)22-16(14)21-20-12/h4-7,13,16H,2-3,19H2,1H3/t13-,16+/m1/s1 A68D4BFB19C67DD3