(1S,7aR)-1-((4S,5S)-5-Benzyloxymethyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-tetrahydro-pyrrolo[1,2-c]oxazol-3-one

(1S,7aR)-1-((4S,5S)-5-Hydroxymethyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-tetrahydro-pyrrolo[1,2-c]oxazol-3-one