Using CC(C)(C)OC(=O)N1CCC(N)CC1, COc1cc(C(=O)O)ccc1N to produce COc1cc(C(=O)NC2CCN(C(=O)OC(C)(C)C)CC2)ccc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.