Using COc1cccc(OC)c1-c1c2ccccc2c(-c2c(OC)cccc2OC)c2ccccc12 to produce Oc1cccc(O)c1-c1c2ccccc2c(-c2c(O)cccc2O)c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.