Using COC(=O)CCc1ccc(C(=O)NC[C@H](N)C(=O)[O-])cc1 to produce COC(=O)CCc1ccc(C(=O)NC[C@H](N)C(=O)OC(C)(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.