Using CCCN(CCC)C(=O)c1cc(C(N)=O)cc(C(=O)OC)c1 to produce CCCN(CCC)C(=O)c1cc(C(N)=O)cc(C(=O)O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.