Using O=c1cc(OCc2ccccc2)cc(CC(O)c2ccc(OCc3ccccc3)c(OCc3ccccc3)c2)o1 to produce O=c1cc(O)cc(CC(O)c2ccc(O)c(O)c2)o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.