(+)-5-benzyloxycarbonylamino-5-deoxy-1,2-O-isopropylidene-β-D-idofuranose

(1R,2E)-1-{(2R)-1-[(1R)-1-phenylethyl]-aziridin-2-yl}-2-buten-1-ol

4,6-O-isopropylidene-1,5-imino-D-iditol

(4aR,8aR)-5-tert-butoxycarbonyl-2,2-dimethyl-4,4a,6,8a-tetrahydro[1,3]dioxino[5,4-b]pyridine

(4R,5R)-5-(N-allyl-tert-butoxycarbonylamino)-2,2-dimethyl-4-vinyl-1,3-dioxolane