Using C=CCBr, CC(C)(C)OC(=O)N1CCN(c2cccc3[nH]ccc23)CC1 to produce C=CCn1ccc2c(N3CCN(C(=O)OC(C)(C)C)CC3)cccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.