Using C1CCNC1, CCNC(=O)Nc1nc2cc(Br)cc(C(=O)OCC)n2n1 to produce CCNC(=O)Nc1nc2cc(N3CCCC3)cc(C(=O)N3CCCC3)n2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.