Using C=CC(=O)O, CC(C)(C)OC(=O)Nc1cccc(N2CCC[C@H](N)C2)n1 to produce C=CC(=O)N[C@H]1CCCN(c2cccc(NC(=O)OC(C)(C)C)n2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.