0 B12R2.246 NC1=NC(=S)C2=C(N1)N=CN2 DB00352 [0,0,0,0,0,0|0,1,1]=2 1 B11R2.106 NC1=C2NC=NC2=NC=N1 DB00173 [1,0,0,0,0,0|1,0,0]=2 2 B11R2.106 S=C1N=CNC2=C1NC=N2 DB01033 [1,0,0,0,0,0|0,1,1]=3