(2R,3R,4R)-2,3,4-trimethyl-2,3-methylenedioxypentanedioic anhydride

(2R,3R,4R)-2,3,4-Trimethyl-2,3-(methylenedioxy)pentanedioic acid

(2'R,3R,4S)-5-[2'-methoxy-2'-(trifluoromethyl)phenylacetoxy]-2,3,4-trimethyl-3,4-methylenedioxy-2-pentene

((4S,5R)-4,5-dimethyl-5-((R)-1-oxopropan-2-yl)-1,3-dioxolan-4-yl)methyl 3,3,3-trifluoro-2-methoxy-2-phenylpropanoate

(2'R,2S,3R,4S)-5-[2'-methoxy-2'-(trifluoromethyl)phenylacetoxy]-2,3,4-trimethyl-3,4-methylenedioxypentanoic acid