Using O=C1CN2CCOC2(c2ccccc2Cl)c2cc([N+](=O)[O-])ccc2N1, OCCBr to produce O=C1CN2CCOC2(c2ccccc2Cl)c2cc([N+](=O)[O-])ccc2N1CCO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.