Using CC(=O)OCC1=NN(c2ncccc2Cl)C(O)(C(Cl)(Cl)Cl)C1 to produce CC(=O)OCc1cc(C(Cl)(Cl)Cl)n(-c2ncccc2Cl)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.