Using COc1cc(C#N)cc2c(-c3cccc(F)c3)n[nH]c12, CC(=O)O to produce COc1cc(C(=O)O)cc2c(-c3cccc(F)c3)n[nH]c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.