Using O=C(NCCc1ccc([N+](=O)[O-])cc1)C(F)(F)F, C=O to produce O=C(N1CCc2ccc([N+](=O)[O-])cc2C1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.