抄録
Enantiomeric separation of Azerastine hydrochloride, antiallergic drug, was developped by high-performance liquid chromatography. Optical resolution was investigated by ion pair chromatography using d-10-camphorsulfonic acid as a chiral counter ion and a polar stationary phase, Nucleosil 5CN. The increase of the chiral counter ion decreases retention of Azerastine. Good separation was obtained at 0°C of column temperature. By the use of 1-10-camphorsulfonic acid, elution order of enantiomers was reversed. The precision of the method was tested by performing replicate assay.
