Using Oc1ccc(OCCc2coc(-c3ccccc3)n2)cc1, CCOC(=O)C(C)(C)Br to produce CCOC(=O)C(C)(C)Oc1ccc(OCCc2coc(-c3ccccc3)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.