Using CCOC(=O)Cc1c(Cl)nc(Cl)nc1NC1CCN(C(=O)OC(C)(C)C)CC1 to produce CCOC(=O)Cc1c(Cl)nc(Cl)nc1NC1CCNCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.