0 B16R2.252 OC1=CC=CC(CCC2=CC=CC=C2)=C1 W5539 [2,0,0,0,0,0|2,0,0]=4 1 B16R2.71 NC1=C(CCC2=CC=CC=N2)C=CC=C1 4411AE [2,0,0,0,0,0|2,0,0]=4