Task: Please estimate if the molecule with the SMILES O=c1cc(CCl)nc2sc3ccccc3n12 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}
O=c1cc(CCl)nc2sc3ccccc3n12
O=c1cc(CCl)nc2sc3ccccc3n12
2-(chloromethyl)pyrimido[2,1-b][1,3]benzothiazol-4-one