Using Nc1n[nH]c2nc(Oc3ccc(F)cc3F)ncc12, CC(C)=O to produce CC(C)Nc1n[nH]c2nc(Oc3ccc(F)cc3F)ncc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.