Using Clc1ccc(C2(Cn3cncn3)CO2)c(Cl)c1, O=C(O)CCS to produce O=C(O)CCSCC(O)(Cn1cncn1)c1ccc(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.