[3aR(3aα,4α,5β,6aα)]-(-)-5-(苯甲酰氧基)六氢-2-氧代-2H-环戊并[b]呋喃-4-甲醛

(3aR,4R,5R,6aS)-4-(4,4-difluoro-3-oxooctyl)-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate

(3aR,4R,5R,6aS)-4-(4,4-difluoro-3-oxooctyl)-5-(tetrahydro-2H-pyran-2-yloxy)hexahydro-2H-cyclopenta[b]furan-2-one

(3aR,4R,5R,6aS)-4-(4,4-difluoro-3-hydroxyoctyl)-5-(tetrahydro-2H-pyran-2-yloxy)hexahydro-2H-cyclopenta[b]furan-2-one

(3aR,4R,5R,6aS)-4-(4,4-difluoro-3-hydroxyoctyl)-5-(tetrahydro-2H-pyran-2-yloxy)hexahydro-2H-cyclopenta[b]furan-2-ol