Using COCOc1cc(OCOC)c(C(=O)CCc2cc(OC)c(OCOC)c(OC)c2)c(O)c1CCC(C)C to produce COc1cc(CCC(=O)c2c(O)cc(O)c(CCC(C)C)c2O)cc(OC)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.