Using CC(C(=O)O)n1c(-c2ccc(Cl)cc2)nc2cccnc21, CCCNCCC to produce CCCN(CCC)C(=O)[C@H](C)n1c(-c2ccc(Cl)cc2)nc2cccnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.