0 B17R2.5356 NC1=CC=C(Cl)C=C1C(=O)C2=CC=CC=C2 CS-0006946 [1,0,1,0,0,0|1,0,0]=3 1 B17R3.35227 BrC1=C2C=CC=CC2=CC3=CC=CC=C31 CS-W010171 [2,0,0,0,0,0|2,0,0]=4