Using C=CC(O)C(NC(=O)c1cn(C)nc1C(F)(F)F)C(=O)NC, CC(=O)O to produce C=CC(OC(C)=O)C(NC(=O)c1cn(C)nc1C(F)(F)F)C(=O)NC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.