Using CSc1ncc(C#N)c(-c2cnc3c(CO)cccn23)n1, COCCN(CCOC)S(F)(F)F to produce CSc1ncc(C#N)c(-c2cnc3c(CF)cccn23)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.