Using CCN(CC)CC, COC(=O)c1ccc([N+](=O)[O-])c(OC)c1CBr to produce COc1c([N+](=O)[O-])ccc2c1CN(C)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.