(2S,2'S,5'S,2''R,5''S)-5''-((R)-4-Benzyloxy-1-hydroxy-butyl)-hexahydro-[2,2';5',2'']terfuran-5-one

(2S,2'S,5'S,2''R,5''S)-5''-((S)-4-Benzyloxy-1-hydroxy-butyl)-hexahydro-[2,2';5',2'']terfuran-5-one

(2S,2'S,5'S,2''S,5''R)-5''-((R)-4-Benzyloxy-1-hydroxy-butyl)-hexahydro-[2,2';5',2'']terfuran-5-one

(2R,2'S,5'S,2''S,5''R)-5''-((R)-4-Benzyloxy-1-hydroxy-butyl)-hexahydro-[2,2';5',2'']terfuran-5-one

(R)-4-(tert-Butyl-dimethyl-silanyloxy)-4-{(2S,5R,2'S,5'S)-5'-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-undecyl]-octahydro-[2,2']bifuranyl-5-yl}-butyraldehyde