Using C1CCNC1, C[C@H](Oc1ccc(-c2ccc(CC(=O)O)cc2)cc1)[C@H](O)CCc1cccnc1 to produce C[C@H](Oc1ccc(-c2ccc(CC(=O)N3CCCC3)cc2)cc1)[C@H](O)CCc1cccnc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.