Using COC(=O)C1=C(NC(C)c2ccccc2)CCN(C(=O)OC(C)(C)C)C1 to produce COC(=O)C1CN(C(=O)OC(C)(C)C)CCC1NC(C)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.