Using COC1(C(=O)O)CCN(C2CCCN(C(=O)OC(C)(C)C)CC2)CC1, CC1(N)CCC1 to produce COC1(C(=O)NC2(C)CCC2)CCN(C2CCCN(C(=O)OC(C)(C)C)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.