p. 4073 - 4075
(2010)3,4-dihydro-2H-pyran
3-hydroxyoxolan-2-one
(3S)-3-hydroxydihydrofuran-2(3H)-one
4-Hydroxy-2-(tetrahydro-pyran-2-yloxy)-butyric acid benzyl ester
(S)-4-Hydroxy-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