Using Nc1cccc(NC(=S)Nc2ccc(Cl)cc2Cl)c1NCC(O)CO to produce Nc1cccc2nc(Nc3ccc(Cl)cc3Cl)n(CC(O)CO)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.