Using CCCSc1ccc(Cl)c(C#N)n1, Oc1ccc(Cl)c(Cl)c1 to produce CCCSc1ccc(Oc2ccc(Cl)c(Cl)c2)c(C#N)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.