Using O=[N+]([O-])c1ccc(B(O)O)cc1, CCOC(=O)c1sc(Br)nc1C to produce CCOC(=O)c1sc(-c2ccc([N+](=O)[O-])cc2)nc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.