5,5-二甲基海因

5-[(2R,3S)-3-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-2,3-dihydroxy-prop-(Z)-ylidene]-imidazolidine-2,4-dione

5-(D-arabino-2,3,4,5-tetrahydroxypentylidene)imidazole-2,4-dione

3,4:6,7-di-O-isopropylidene-D-glycero-D-altro-heptono-1,5-lactone