Using CCOC(=O)c1cc2ccncc2n1C(=O)OC(C)(C)C, BrCc1ccccc1 to produce CCOC(=O)c1cc2c([nH]1)CN(Cc1ccccc1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.