Using CCOC(=O)c1n[nH]c2cc(C)c(-c3ccc(OC)cc3F)cc12 to produce COc1ccc(-c2cc3c(C(=O)O)n[nH]c3cc2C)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.