Task: Please predict if the molecule with the SMILES O=C1c2ccccc2NC2=NCC(CSc3ccc(Br)cc3)N12 is an inhibitor of factor XIa (FXIa).
Result: no
Task: Please {#determine|predict|estimate!} if the {#molecule|compound!} with the {SMILES__description} {SMILES#} is {MUV-846__names__noun}.
Result: {MUV-846#no&yes}
3-[(4-bromophenyl)sulfanylmethyl]-3,10-dihydro-2H-imidazo[2,1-b]quinazolin-5-one