Using CCc1csc([C@@H](N)Cc2ccc([N+](=O)[O-])cc2)n1, O=C(O)CCC(=O)c1ccccc1 to produce CCc1csc([C@H](Cc2ccc([N+](=O)[O-])cc2)NC(=O)CCC(=O)c2ccccc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.