摘要:
Mexiletine [1-(2,6-dimethylphenoxy)-2-aminopropane], an orally effective antiarrhythmic agent, exhibits enantioselective pharmacokinetics and pharmacodynamics during mexiletine therapy. The purpose of this paper is to emphasize the advantage of tetrahydropyranyl-protected mandelic acid (THPMA) in the resolution of mexiletine enantiomers. Both enantiomers of mexiletine were obtained in 99% enantiomeric excess. Judging by the differential shielding effects in the H-1 and C-13 NMR analyses, we have observed the opposite predominant conformation for the mexiletine mandelates in comparison with the O-methylmandelates. (C) 1999 Elsevier Science Ltd. All rights reserved.