Using CCOC(=O)[C@@H](CCCNC(=O)OCc1ccccc1)NC(=O)NCc1ccc(NC(=O)OC(C)(C)C)cc1, CC(=O)OC(C)=O to produce CCOC(=O)[C@@H](CCCNC(C)=O)NC(=O)NCc1ccc(NC(=O)OC(C)(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.