Using Clc1nc(Cl)c2ccc(Br)cc2n1, COc1ccc(CO)cc1 to produce COc1ccc(COc2nc(OCc3ccc(OC)cc3)c3ccc(Br)cc3n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.