Using CCc1cnc(N2CCC(N3CCC[C@H](N(C)C(=O)OCc4ccccc4)C3=O)CC2)nc1 to produce CCc1cnc(N2CCC(N3CCC[C@H](NC)C3=O)CC2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.