Using CN(c1ccccc1)c1nc(N)nc(-c2noc(-c3ncccc3O)n2)n1, FC(F)(F)CI to produce CN(c1ccccc1)c1nc(N)nc(-c2noc(-c3ncccc3OCC(F)(F)F)n2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.