Using O=C(Nc1ccccc1)c1ccc(CCl)cc1, Oc1ccc(S)cc1 to produce O=C(Nc1ccccc1)c1ccc(CSc2ccc(O)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.