Using COc1ccc2c(c1)CNCC2, O=[N+]([O-])c1ccc(CCBr)cc1 to produce COc1ccc2c(c1)CN(CCc1ccc([N+](=O)[O-])cc1)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.