Using Nc1ccccc1, NC(=O)c1ccc(Oc2ccc(CCC=O)cc2)nc1 to produce NC(=O)c1ccc(Oc2ccc(CCCNc3ccccc3)cc2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.