0 B14R2.21 C1=CC=C(C=C1)C2=CC(=NC=N2)I S2643 [2,0,0,0,0,0|1,0,0]=3 1 B14R2.21 C1=CC=C(C=C1)C2=CC(=NC=N2)I S2643 [2,0,0,0,0,0|1,0,0]=3