Using O=Cc1cnc(Nc2ccccn2)s1, Nc1cc(C(=O)NC2CC2)c(F)cc1F to produce O=C(NC1CC1)c1cc(NCc2cnc(Nc3ccccn3)s2)c(F)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.