Using CNC(=O)c1cc(Cl)ccn1, Oc1ccc2nc(Nc3ccc(Br)cc3)ncc2c1 to produce CNC(=O)c1cc(Oc2ccc3nc(Nc4ccc(Br)cc4)ncc3c2)ccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.