Using COC(=O)C=P(c1ccccc1)(c1ccccc1)c1ccccc1, O=Cc1sc2ccccc2c1Cl to produce COC(=O)/C=C/c1sc2ccccc2c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.