Using COC(OC)N(C)C, CCCC(=O)CC(=O)Cc1cccc(C(F)(F)F)c1 to produce CCCC(=O)c1cn(C)cc(-c2cccc(C(F)(F)F)c2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.