Using OCCn1c(-c2cccs2)n[nH]c1=S, Fc1ccc(Cl)cc1-c1nc(CCl)no1 to produce OCCn1c(SCc2noc(-c3cc(Cl)ccc3F)n2)nnc1-c1cccs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.