Using COC(=O)c1ccc(C=S(=O)=O)c(CC2=NOCC2)c1Cl to produce O=C(O)c1ccc(C=S(=O)=O)c(CC2=NOCC2)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.