Using C[C@H]1O[C@]1(Cn1cncn1)c1ccc(F)cc1F, COC(=O)CCS to produce C[C@H](S)[C@@](O)(Cn1cncn1)c1ccc(F)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.