p. 1329 - 1332
(1991)(3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-((2R,3R)-2,3-epoxy-4-hydroxybutyl)-2H-cyclopentafuran-2-one
Benzoic acid (3aR,4R,5R,6aS)-4-(3-hydroxymethyl-oxiranylmethyl)-2-oxo-hexahydro-cyclopenta[b]furan-5-yl ester
(3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-((2R)-2-(phenylsulfinyl)-(3S)-3-hydroxy-4-phenoxybutyl)-2H-cyclopentafuran-2-one
(3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-((2S)-2-hydroxy-(3S)-3-(phenylthio)-4-phenoxybutyl)-2H-cyclopentafuran-2-one
(3aR,4R,5R,6aS)-5-(benzoyloxy)hexahydro-4-((2R)-2-(phenylthio)-(3S)-3-hydroxy-4-phenoxybutyl)-2H-cyclopentafuran-2-one