Using COc1cc(N)ccc1Br, CNc1nc(Cl)nc2c1CCC2c1ccccc1 to produce CNc1nc(Nc2ccc(Br)c(OC)c2)nc2c1CCC2c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.