Using CCCCc1nc2cccnc2n1Cc1ccc(-c2cc(Cl)sc2-c2nnn[nH]2)cc1 to produce CCCCc1nc2cccnc2n1Cc1ccc(-c2ccsc2-c2nnn[nH]2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.