Using CN1CCNCC1, CC(C)(C)OC(=O)Nc1cc(C#N)cc(CCC=O)c1Cl to produce CN1CCN(CCCc2cc(C#N)cc(NC(=O)OC(C)(C)C)c2Cl)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.