Using COc1cc(O)c(C(C)=O)c(OC)c1, COCOc1ccc(C=O)cc1 to produce COCOc1ccc(C=CC(=O)c2c(O)cc(OC)cc2OC)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.