(3aR,5S,6S,6aR)-2,2-dimethyl-6-(prop-2-ynyloxy)tetrahydrofuro[2,3-d][1,3]dioxole-5-carbaldehyde

1,2-di-O-acetyl-3,5-di-O-benzyl-α/β-D-xylofuranose

ethyl 6-deoxy-6-diazo-1,2-O-isopropylidene-3-O-(propargyl)-α-D-xylo-hept-5-ulofuranuronate

(5aS,5bR,8aR,9aR)-7,7-dimethyl-2-phenyl-2,4,5a,5b,8a,9a-hexahydro-5,6,8,9-tetraoxa-1,2-diaza-cyclopenta[b]-as-indacene