3,4-dihydro-2H-pyran
benzyl bromide
3-deoxy-L-glycero-tetronolactone
(S)-3-(Tetrahydro-pyran-2-yloxy)-dihydro-furan-2-one
3-(Tetrahydro-pyran-2-yloxy)-dihydro-furan-2-one
(R)-4-((R)-2-Oxo-tetrahydro-furan-3-ylamino)-2-(tetrahydro-pyran-2-yloxy)-butyric acid benzyl ester
(S)-4-((S)-2-Oxo-tetrahydro-furan-3-ylamino)-2-(tetrahydro-pyran-2-yloxy)-butyric acid benzyl ester
(S)-2-{[(S)-3-Benzyloxycarbonyl-3-(tetrahydro-pyran-2-yloxy)-propyl]-tert-butoxycarbonyl-amino}-4-oxo-butyric acid benzyl ester
(S)-2-{[(S)-3-Benzyloxycarbonyl-3-(tetrahydro-pyran-2-yloxy)-propyl]-tert-butoxycarbonyl-amino}-4-hydroxy-butyric acid benzyl ester
(S)-4-[tert-Butoxycarbonyl-((S)-2-oxo-tetrahydro-furan-3-yl)-amino]-2-(tetrahydro-pyran-2-yloxy)-butyric acid benzyl ester