Using C1COCCO1, CC(=O)Oc1cc(C)nn1-c1ccc(C(C)(C)C)cc1 to produce CC(=O)c1c(C)nn(-c2ccc(C(C)(C)C)cc2)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.