Using CN(C(=O)C12CCC(NC(=O)OC(C)(C)C)(CC1)CC2)c1ccc(Cl)cc1 to produce CN(C(=O)C12CCC(N)(CC1)CC2)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.