Using COc1ccc(N(C(=O)CBr)C(C)C)cc1, Nc1ccccc1Nc1ncccn1 to produce COc1ccc(N(C(=O)CNc2ccccc2Nc2ncccn2)C(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.