Using COc1ccc2c(c1)CCN2, O=CCCn1cc([N+](=O)[O-])cn1 to produce COc1ccc2c(c1)CCN2CCCn1cc([N+](=O)[O-])cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.