Pharm-eco Laboratories, Inc.

Donna Kaye Wilson

Siya Ram

Yesh P Sachdeva

Richard L Gabriel

Xiaoyong Sun

The present invention relates to a method for the stereospecific synthesis of an enantiomer of a chiral amine, wherein the chiral amine has the formula R.sup.1 CH(NH.sub.2)R.sup.2. R.sup.1 and R.sup.2 are each independently selected from the group consisting of alkyl, aryl and heterocyclic and radicals. This method is particularly useful for stereospecifically synthesizing S-dolaphenine. The method involves contacting a chiral enantiomer of norephedrine with borane, within an aprotic solvent to form a complex for stereospecifically reducing oximes. The complex is then contacted with an oxime, thereby stereospecifically reducing said oxime to form an enantiomer of a chiral amine.

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Billerica, MA, United States of America

Donna Kaye Wilson