Using CCCCCCCCCCCCCCCC(=O)c1cc(O)c(C)cc1O, CCC(C)=O to produce C=CCOc1cc(C(=O)CCCCCCCCCCCCCCC)c(O)cc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.