Using CI, Cc1ccn2c(C)c(CCc3ccc4nc([S-])oc4c3)nc2c1 to produce CSc1nc2ccc(CCc3nc4cc(C)ccn4c3C)cc2o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.