Using CCOC(C)=N, Nc1cc(-c2nc3cc(Cl)ccc3o2)ccc1NCCC(F)(F)F to produce Cc1nc2cc(-c3nc4cc(Cl)ccc4o3)ccc2n1CCC(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.