Using COc1ccnc(CCl)c1C, Fc1cc2nc(S)[nH]c2cc1F to produce COc1ccnc(CSc2nc3cc(F)c(F)cc3[nH]2)c1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.