Using COc1cccc2cc(-c3n[nH]c(=O)[nH]3)nc(N[C@H]3CCN(C(=O)OC(C)(C)C)C3)c12 to produce COc1cccc2cc(-c3n[nH]c(=O)[nH]3)nc(N[C@H]3CCNC3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.