Using CCc1cc2c(Cl)nc(SC)[nH]c-2n1, Clc1cccc(CBr)c1 to produce CCc1cc2c(Cl)nc(SC)nc2n1Cc1cccc(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.