Using CCOC(=O)C1(C)CCN1, Cc1cc(C)cc(CC(=O)O)c1 to produce CCOC(=O)C1(C)CCN1C(=O)Cc1cc(C)cc(C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.