Using C[O-], O=P(OC1=Nc2ccc(Cl)cc2C(c2ccccc2)=NC1)(N1CCOCC1)N1CCOCC1 to produce COC1=Nc2ccc(Cl)cc2C(c2ccccc2)=NC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.