111570-90-2
1-O-β-2,3-O-isopropylidene-5-deoxy-5-iodo-D-ribofuranose
→
~91%
111570-91-3
4,5-dehydro-5-deoxy-2,3-O-isopropylidene-D-erythro-pentafuranose
104010-72-2
(+)-(3As,6as)-3a,6a-二氢-2,2-二甲基-4H-环戊并-1,3-二氧代-4-酮