Using COc1ccc(CCNc2cc(-c3cccc(O)c3)nc(OC)n2)cc1, CCOC(=O)C(C)(C)Br to produce CCOC(=O)C(C)(C)Oc1cccc(-c2cc(NCCc3ccc(OC)cc3)nc(OC)n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.