Using Cc1c(-c2ccccc2)nnc(N2CCN(C(=O)OC(C)(C)C)[C@@H](C)C2)c1C to produce Cc1c(-c2ccccc2)nnc(N2CCN[C@@H](C)C2)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.