Using CCON, C[C@H]1CC[C@H](C(=O)N(c2cc(C3=CCCCC3)sc2C(=O)O)C2CCC(=O)CC2)CC1 to produce CCON=C1CCC(N(c2cc(C3=CCCCC3)sc2C(=O)O)C(=O)[C@H]2CC[C@H](C)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.