Using CCOC(=O)C(CCc1ccccc1N)NC(=O)OC(C)(C)C, CCOC(=O)C=O to produce CCOC(=O)CNc1ccccc1CCC(NC(=O)OC(C)(C)C)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.