Using O=[O+][O-], C=CCC(c1c(Cl)c(Cl)cc2nc(OC)c(OC)nc12)S(C)(=O)=O to produce COc1nc2cc(Cl)c(Cl)c(C(CCO)S(C)(=O)=O)c2nc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.