Using O=CC(CCl)=NNc1c(Cl)cc(C(F)(F)F)cc1Cl, CS to produce CSCC(C=O)=NNc1c(Cl)cc(C(F)(F)F)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.