Using COc1cc(CC=O)ccc1C#N, CC(C)(C)OC(=O)N1CCNCC1 to produce COc1cc(CCN2CCN(C(=O)OC(C)(C)C)CC2)ccc1C#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.