Using O=C(CC1CCNCC1)c1ccc(Nc2ncnc3c2CCC3)cc1, BrCc1ccccc1 to produce O=C(CC1CCN(Cc2ccccc2)CC1)c1ccc(Nc2ncnc3c2CCC3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.