Using COc1ccc2oc(-c3cnc(N(C)C(=O)OC(C)(C)C)c(F)c3)cc2c1 to produce CNc1ncc(-c2cc3cc(O)ccc3o2)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.