D-Galactose, for comparison<unk>  is used in form of the hydrochloride, which is a white crystalline solid and is soluble in water. The molecule has four asymmetric carbon atoms with the same stereochemistry as the sugar D-galactose, but is missing the first hydroxyl group. It has a nitrogen atom in the ring instead of an oxygen, which makes it an iminosugar. The structure is formally derived from nojirimycin.
Migalastat
Cobicistat
Lazaretto
Miglustat
Truenat
Epiestriol
Lifitegrast
Ketotifen