Using NCC(=O)c1ccccc1F, O=C(O)C1CCN(C(=O)Oc2cccnc2)CC1 to produce O=C(CNC(=O)C1CCN(C(=O)Oc2cccnc2)CC1)c1ccccc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.