Results: The appropriate chromatographic conditions were found out for complete separation of the enantiomers, using a cellulose tris-3, 5-dimethylphenyl carbamate chiral stationary phase (Lux cellulose-1 column: 250 x 4.6 mm; 5 µm), thermostated at 30oC, mixture of n-hexan containing 0.2% triethylamine and isopropanol containing 0.2% triethylamine (90: 10, v / v) as eluent in isocratic mode, flow rate of 1.5 ml / min for N1 compound, of 2 ml / min for N2 compound, and detection wavelength of 317 nm.