Using COc1ccc(-c2cc(=O)c3c(OC)c(OC)c(OC)cc3o2)cc1 to produce O=c1cc(-c2ccc(O)cc2)oc2cc(O)c(O)c(O)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.