Using COc1cc2oc(-c3ccccc3)c(-c3ccccc3)c(=O)c2c(OC)c1OC to produce O=c1c(-c2ccccc2)c(-c2ccccc2)oc2cc(O)c(O)c(O)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.