D-Sedoheptulose 7-phosphate is a common precursor of heptaic acid (group III) and the heptasaccharide of hygromycin B (group IV). This compound can be converted to NDP-heptose via similar biosynthetic pathways present in these substances.
Diplopterol is biosynthetic of squalene for use in acetobacter pasteurii in a cell-free system. It is a hopanoid and can be used as a substitute for sterols.