Using O=[N+]([O-])c1cccnc1O, CC(C)(C)OC(=O)CBr to produce CC(C)(C)OC(=O)Cn1cccc([N+](=O)[O-])c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.