Using CCOC(=O)C(=O)N1C2=CC=C(Br)CC2CCC1CC(=O)OC, O=[N+]=O to produce CCOC(=O)C(=O)N1C2=C([N+](=O)[O-])C=C(Br)CC2CCC1CC(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.