Using CCOC(=O)c1ccccc1O, CC(C)(C)OC(=O)NC(Cc1ccccc1)C(=O)O to produce CCOC(=O)c1ccccc1OC(=O)C(Cc1ccccc1)NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.