Using CCOC(=O)C=[N+]=[N-], O=C1CCN(C(=O)OCc2ccccc2)CC1 to produce CCOC(=O)C1CCN(C(=O)OCc2ccccc2)CCC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.