Using O=C(O)c1ccc(F)c(NCc2cnc(Nc3ccccn3)s2)c1, NCC1CC1 to produce O=C(NCC1CC1)c1ccc(F)c(NCc2cnc(Nc3ccccn3)s2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.