Using O=C1NC(=O)c2ccccc21, CCCN(CCC)CCCCc1ccc2cc(CO)ccc2c1 to produce CCCN(CCC)CCCCc1ccc2cc(CN3C(=O)c4ccccc4C3=O)ccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.