Using Brc1cn2ccnc2c(Br)n1, CC(C)(C)OC(=O)n1cnc2ccc(N)cc21 to produce CC(C)(C)OC(=O)n1cnc2ccc(Nc3nc(Br)cn4ccnc34)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.