Using COc1cc(C(C)=O)cc(OC)c1OC, CCCOc1ccc(C=O)cc1O to produce CCCOc1ccc(/C=C/C(=O)c2cc(OC)c(OC)c(OC)c2)cc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.