Using CCOC(=O)C1CCCCN1, O=C(O)c1ccc(COc2ccc(-c3ccccc3)cc2)o1 to produce CCOC(=O)C1CCCCN1C(=O)c1ccc(COc2ccc(-c3ccccc3)cc2)o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.