Using Clc1ccc(Nc2cccc(-c3cnc(Cl)o3)n2)nc1, OB(O)c1ccsc1 to produce Clc1ccc(Nc2cccc(-c3cnc(-c4ccsc4)o3)n2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.