Using CN(C)C1(c2cccs2)CCN(CCNC(=O)OC(C)(C)C)CC1, ClC(Cl)Cl to produce CN(C)C1(c2cccs2)CCN(CCN)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.