The authors investigated 123 drugs for chiral separation using seven c
yclodextrins as chiral solvating additives for capillary zone electrop
horesis. Of 86 detectable marketed chiral drugs, they separated 63 int
o enantiomers, including all 23 drugs with tricyclic (aromatic ring nu
mber) systems and 9 beta-blockler drugs. Native beta-cyclodextrin and
its derivatives were promising chiral selectors compared with other cy
clodextrins because of the molecule's higher degree of asymmetry.