(1'R,2'S,5'R)-Menthyl (1S,2R,3S,4S,5S,6S)-5,6-dihydroxy-3-(2-pyridylthio)-7-oxabicyclo<2.2.1>heptane-2-carboxylate

(1'R,2'S,5'R)-Menthyl (1R,2R,3S,4S)-3-(2-pyridylthio)-7-oxabicyclo<2.2.1>hept-5-ene-2-carboxylate

(1R,2R,3S,4S)-3-((S)-Pyridine-2-sulfinyl)-7-oxa-bicyclo[2.2.1]hept-5-ene-2-carboxylic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester

(1'R,2'S,5'R)-Menthyl (1S,2R,3S,4S,5S,6S)-5,6-O,O-isopropylidene-5,6-dihydroxy-3-(2-pyridylthio)-7-oxabicyclo<2.2.1>heptane-2-carboxylate