Using Clc1ccc(C2=NNC(c3cccnc3)S2)cc1 to produce Clc1ccc(C(=NN=Cc2cccnc2)SSC(=NN=Cc2cccnc2)c2ccc(Cl)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.