Using Cc1c(-c2cccnc2)n(COC(=O)C(C)(C)C)c2ccc(Cl)cc12 to produce Cc1c(-c2cccnc2)n(CO)c2ccc(Cl)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.