Using O=C(Nc1ccccc1)c1cc2cc([N+](=O)[O-])ccc2[nH]1, CC(C)(C)OC(=O)CBr to produce CC(C)(C)OC(=O)Cn1c(C(=O)Nc2ccccc2)cc2cc([N+](=O)[O-])ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.