Using CCOC(CC)(OCC)OCC, CC(C)(O)CNc1c(N)cnc2cc(Br)ccc12 to produce CCc1nc2cnc3cc(Br)ccc3c2n1CC(C)(C)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.