Using O=C(O)CCc1ccccc1, COc1ccc(N2CCC(N)CC2)cc1 to produce COc1ccc(N2CCC(NC(=O)CCc3ccccc3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.