Using Cn1nc(-c2cnc3[nH]cc(C(=O)NC(C)(C)CNC(=O)OC(C)(C)C)c3n2)c2ccc(Cl)cc21 to produce Cn1nc(-c2cnc3[nH]cc(C(=O)NC(C)(C)CN)c3n2)c2ccc(Cl)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.