Using COC(=O)c1ccc(COc2cc(C(C)(C)C)nn2Cc2ccc(C(=O)OC)cc2)cc1 to produce COC(=O)c1ccc(Cn2nc(C(C)(C)C)cc2O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.