Task: Please estimate if the molecule with the SMILES O=C1CN(c2ccccc2Cl)C(=O)CN1c1ccccc1Cl 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}
1,4-bis(2-chlorophenyl)piperazine-2,5-dione