Using O=C1CC(c2nc3ccc(Br)cc3s2)C1, C1CCNC1 to produce Brc1ccc2nc([C@H]3C[C@@H](N4CCCC4)C3)sc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.