Using O=S([O-])[O-], COc1cc(P(c2cc(OC)c(OC)c(OC)c2)c2cc(OC)c(OC)c(OC)c2)cc(OC)c1OC to produce COc1cc(P(=O)(c2cc(OC)c(OC)c(OC)c2)c2cc(OC)c(OC)c(OC)c2)cc(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.