Using COC(=O)C1(CNC(=O)OCc2ccccc2)CCN(C(=O)OC(C)(C)C)CC1 to produce CC(C)(C)OC(=O)N1CCC(CNC(=O)OCc2ccccc2)(C(=O)O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.