Using CCCc1cc(O)nc(-c2cccc(Oc3ccccc3Cl)n2)n1, O=P(Cl)(Cl)Cl to produce CCCc1cc(Cl)nc(-c2cccc(Oc3ccccc3Cl)n2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.