Using O=C(NC(O)C(=O)c1cccc2ccccc12)c1ccc(Br)cn1, Nc1ccc(Cl)cc1 to produce O=C(NC(Nc1ccc(Cl)cc1)C(=O)c1cccc2ccccc12)c1ccc(Br)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.