0 B13R2.4818 c1cc2c(c(c1)Br)c(ncn2)O LS40883 [2,0,0,0,0,0|2,0,0]=4 1 B13R2.328 c1ccc2c(c1)c(nc(n2)Cl)Cl LS20489 [2,0,0,0,0,0|2,0,0]=4