Using NNc1ccc(Cl)cc1Cl, CCOC(=O)C(=O)C1CCCc2ccsc2C1=O to produce CCOC(=O)c1nn(-c2ccc(Cl)cc2Cl)c2c1CCCc1ccsc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.