Using CNC1(C(=O)OC)CC1, O=C(O)CNC(=O)OCc1ccccc1 to produce COC(=O)C1(N(C)C(=O)CNC(=O)OCc2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.