Using O=[N+]([O-])c1ccccc1CBr, CCOC(=O)C1CCCNC1=O to produce CCOC(=O)C1(Cc2ccccc2[N+](=O)[O-])CCCNC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.