Using COc1cc(Cc2nccc3c(OCc4ccccc4)cc(OCc4ccccc4)cc23)cc(OC)c1OC to produce COc1cc(Cc2nccc3c(O)cc(O)cc23)cc(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.