Using O=C([O-])[O-], O=C1NCCN1C(=O)NC1(C(=O)OCc2ccccc2)CCCCC1 to produce CN1CCN(C(=O)NC2(C(=O)OCc3ccccc3)CCCCC2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.