Using O=C(NC1C2CC3CC(C2)CC1C3)c1cccc(N2CCNCC2)n1, COC(=O)CCBr to produce COC(=O)CCN1CCN(c2cccc(C(=O)NC3C4CC5CC(C4)CC3C5)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.