Using O=P(Cl)(Cl)Cl, COc1cc(CCc2ccc(=O)[nH]n2)cc(OC)c1OC to produce COc1cc(CCc2ccc(Cl)nn2)cc(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.