Using CCN(CC)c1ccc(C=O)cc1, O=C1CCCC1 to produce CCN(CC)c1ccc(C=C2CCC(=Cc3ccc(N(CC)CC)cc3)C2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.