Using CCn1c(Cc2ccc(C(=O)N3CCC(N4CCCC4)C3)cc2)nc2ccccc21 to produce CCn1c(Cc2ccc(CN3CC[C@H](N4CCCC4)C3)cc2)nc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.