0 B15R2.27 O=C1C=C(C2=CC=CC=C2)N=C(S)N1 MC41721 [2,0,0,0,0,0|1,0,0]=3 1 B15R2.18 N#CC1=CC(N2C=C(Br)C=N2)=CC=C1 MC425147 [1,0,0,0,1,0|2,0,0]=4