Using C1CCNC1, Cc1[nH]cc2c(=O)n(-c3ccc(Cl)cc3)nc-2c1-c1cccc(C(=O)O)c1 to produce Cc1[nH]cc2c(=O)n(-c3ccc(Cl)cc3)nc-2c1-c1cccc(C(=O)N2CCCC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.