Using COC(COc1ccc2c(O)cc(-c3csc(C(C)C)n3)nc2c1Cl)OC, O=P(Cl)(Cl)Cl to produce COC(COc1ccc2c(Cl)cc(-c3csc(C(C)C)n3)nc2c1Cl)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.