核糖 0 5 1 5 H OH HOCH: 0 OH H-C-H HOCH] OH H一 OH H-一C一OH H H 5 H H OH OR H-C-OH OR H 14 4 H COH Furanose form of Furanose form of DRibose HCOH n 2-Deaxyribose b-Rihose 3-p-Rihofurtnose p-2-Deoxyrihose 8-2-Deoxyribofuranote核糖