abstract |
The present invention relates to stereoselective synthesis of R-MNTX and intermediates thereof, pharmaceutical preparations containing R-MNTX and intermediates thereof, and methods of use thereof. A composition comprising R-MNTX, wherein there is no S-MNTX detectable by HPLC at a detection limit of 0.02% and a quantitation limit of 0.05%. [Selection figure] None |