Using Clc1ccc(Nc2nc3ccccc3s2)cc1, O=C(Cl)c1ccccc1Cl to produce O=C(c1ccccc1Cl)N(c1ccc(Cl)cc1)c1nc2ccccc2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.