Using COC(=O)c1ccc(Cc2c(C)c(OC)c(OC)c(OC)c2OC)cc1OCc1ccccc1 to produce COC(=O)c1ccc(Cc2c(C)c(OC)c(OC)c(OC)c2OC)cc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.