Using CC(C)(C)Cn1c(CBr)cc2cnc(C#N)nc21, COc1ccccc1N1CCNCC1 to produce COc1ccccc1N1CCN(Cc2cc3cnc(C#N)nc3n2CC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.