Using O=C(O)C1CCCCC1, CCOC(=O)/C=C/c1ccc(N[C@@H]2CCCNC2)nc1 to produce CCOC(=O)/C=C/c1ccc(N[C@@H]2CCCN(C(=O)C3CCCCC3)C2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.