Using COc1cc(OC)c(OC)cc1C=O, CCOC(=O)CC(=O)OCC to produce CCOC(=O)C(=Cc1cc(OC)c(OC)cc1OC)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.