Using CC(C)(C)OC(=O)c1ccc(CBr)c([N+](=O)[O-])c1, COC(=O)NC(=O)OC(C)(C)C to produce COC(=O)N(Cc1ccc(C(=O)OC(C)(C)C)cc1[N+](=O)[O-])C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.