Using Cc1cc(N2CC[C@H](N3CCC[C@@H]3C)C2)ccc1N1CCC2(CCN(C(=O)OC(C)(C)C)CC2)C1=O to produce Cc1cc(N2CC[C@H](N3CCC[C@@H]3C)C2)ccc1N1CCC2(CCNCC2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.