Using COc1ncc(-c2ccncc2)cc1N[C@@H]1CCCN(C(=O)OC(C)(C)C)C1 to produce O=c1[nH]cc(-c2ccncc2)cc1N[C@@H]1CCCNC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.