Using COc1c2c(c(OC)c(OC)c1OC)CC(CCCCOc1ccc(CO)cc1)C2 to produce COC1=C(OC)C(=O)C2=C(CC(CCCCOc3ccc(CO)cc3)C2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.