Using CCn1nc(C(C)(C)C)cc1NC(=O)Nc1ccc(CN2CCN(C(=O)OC(C)(C)C)CC2)cc1 to produce CCn1nc(C(C)(C)C)cc1NC(=O)Nc1ccc(CN2CCNCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.