Enantioseparation of vesamicol and novel vesamicol analogs by high-performance liquid chromatography on different chiral stationary phases.
High-performance liquid chromatography enantioseparation of vesamicol and six novel azaspirovesamicols (amino alcohols) was accomplished on different chiral stationary phases (CSPs) by using an optical rotation based chiral detector for identification of the resolved enantiomers. The Pirkle-type column Reprosil Chiral-NR was found to be most suitable for chiral resolution in normal phase (NP) mode; all compounds could be enantioseparated successfully. Also the cellulose-based column Reprosil Chiral-OM showed appropriate separation properties by using NP conditions. The amylose-type column Reprosil Chiral-AM-RP was most suitable for enantioseparation in reversed phase (RP) mode; five out of seven compounds were resolved. This CSP showed a considerably higher capability for chiral recognition of vesamicol derivatives in RP mode than the corresponding cellulose-based column Reprosil Chiral-OM-RP. Enantioseparation with the teicoplanin aglycone-based column Reprosil Chiral-AA was successful under polar ionic mobile phase conditions.
Wenzel
Barbara
B
Forschungszentrum Dresden-Rossendorf, Research Site Leipzig, Institute of Radiopharmacy, Permoserstr. 15, 04318 Leipzig, Germany. b.wenzel@fzd.de
Fischer
Steffen
S
Brust
Peter
P
Steinbach
Jörg
J
D000688:Amylose / Q000737:chemistry; D002482:Cellulose / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D057927:Hydrophobic and Hydrophilic Interactions; D010880:Piperidines / Q000737:chemistry*; D011145:Polyvinyls / Q000737:chemistry; D012833:Siloxanes / Q000737:chemistry; D013237:Stereoisomerism; D017334:Teicoplanin / Q000031:analogs & derivatives / Q000737:chemistry
D010880:Piperidines; D011145:Polyvinyls; D012833:Siloxanes; C034183:vinyl polysiloxane; C006189:vesamicol; D017334:Teicoplanin; C063101:teicoplanin aglycone; D002482:Cellulose; D000688:Amylose