Using CN1CCCN(C)C1=O, CCOC(=O)C1CCCN(C(=O)OCc2ccccc2)C1 to produce CCOC(=O)C1(C)CCCN(C(=O)OCc2ccccc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.