0  B12R2.246  NC1=NC(=S)C2=C(N1)N=CN2 DB00352 [0,1,0,0,0,0|2,0,1]=4
1  B11R2.106  NC1=C2NC=NC2=NC=N1 DB00173 [1,1,0,0,0,0|1,0,1]=4
2  B11R2.106  S=C1N=CNC2=C1NC=N2 DB01033 [1,1,0,0,0,0|1,0,1]=4