Using CCOC(=O)CCCn1c(Cl)nc2cccc(Br)c21, Nc1ccc(Cl)cc1Cl to produce CCOC(=O)CCCn1c(Nc2ccc(Cl)cc2Cl)nc2cccc(Br)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.