Using CCn1cc(-c2ccncc2)c(-c2c(F)ccc(N(Cc3ccccc3)Cc3ccccc3)c2F)n1 to produce CCn1cc(-c2ccncc2)c(-c2c(F)ccc(N)c2F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.