[2-[(6-cyano-5-oxo-4-oxatricyclo[4.2.1.03,7]nonan-2-yl)oxy]-2-oxoethyl] 2-methyl-2-(trifluoromethyl)butanoate;[2-[(5,6-dimethyl-2-bicyclo[2.2.1]heptanyl)methyl]-1,1,1,3,3,3-hexafluoropropan-2-yl] 2,2,2-trifluoroacetate;2,3-dimethyl-5-[3,3,3-trifluoro-2-methoxy-2-(trifluoromethyl)propyl]bicyclo[2.2.1]heptane;1,1,1,3,3,3-hexafluoro-2-(2-fluoro-5,6-dimethyl-2-bicyclo[2.2.1]heptanyl)propan-2-ol;(2-oxooxan-3-yl) 2-methyl-2-(trifluoromethyl)butanoate;(5-oxooxolan-3-yl) 2-cyano-2-methylbutanoate;(2-oxooxolan-3-yl) 2-methyl-2-(trifluoromethyl)butanoate;[2-oxo-2-[(5-oxo-4-oxatricyclo[4.2.1.03,7]nonan-2-yl)oxy]ethyl] 2-methyl-2-(trifluoromethyl)butanoate