Using COc1ccc(C=O)c(OC)c1, COc1cc(C(C)=O)cc(OC)c1OC to produce COc1ccc(/C=C/C(=O)c2cc(OC)c(OC)c(OC)c2)c(OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.