Using CN1C(=O)CCc2ccc(N)cc21, O=C(O)c1ccc(Cl)cc1NCCO to produce CN1C(=O)CCc2ccc(NC(=O)c3ccc(Cl)cc3NCCO)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.