Welsh & Katz, Ltd.
Process for the preparation of optically active methadones in high enantiomeric purity
 A method of preparing optically active methadones comprises an enzymatic process for the resolution of 1-dialkyl-amino-2-propanol and conversion of the enantiomers to the optically active methadones in high enantiomeric purity. 
Salford Ultrafine Chemicals & Research Ltd.
C C C
C07C C12P C12P
inventional inventional inventional
Jonathan David Nicholas John Feodor
Hull Turner Scheinmann