Using CC(C)c1ccc2[nH]c(=O)n(C3CCN(C(=O)OC(C)(C)C)CC3)c2c1 to produce CC(C)c1ccc2[nH]c(=O)n(C3CCNCC3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.