Using OB(O)c1cc(F)ncc1Cl, N#Cc1cc(Cl)nc(NCc2cccc(F)c2)c1 to produce N#Cc1cc(NCc2cccc(F)c2)nc(-c2cc(F)ncc2Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.