Using Nc1ccc(Cl)nn1, O=C(c1ccc(F)cc1)C1CCNCC1 to produce Nc1ccc(N2CCC(C(=O)c3ccc(F)cc3)CC2)nn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.