Using C=CCN1C(=O)N(C2CCN(C(=O)OC(C)(C)C)CC2)[C@H]2CCCC[C@@H]21 to produce C=CCN1C(=O)N(C2CCNCC2)[C@H]2CCCC[C@@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.