Using CCCc1c(O)ccc(C(C)=O)c1O, ClCc1ccc(Cl)nc1 to produce CCCc1c(OCc2ccc(Cl)nc2)ccc(C(C)=O)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.