Using CCCCc1cc(O[C@@H]2CCN(C(=O)OC(C)(C)C)C2)c2ncccc2c1 to produce CCCCc1cc(O[C@@H]2CCNC2)c2ncccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.