Using O=C1CCCn2cncc21, CC(C)(C)NC(=O)c1ccc(Br)cc1 to produce CC(C)(C)NC(=O)c1ccc(C2(O)CCCn3cncc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.