| abstract |
This invention provides a method of preparing amine stereoisomers, which comprises stereoselectively reducing a sulfinylimine that bears on the sulfm yl group a residue of an alcohol, thiol or amine, or reacting a sulfmylimine stereoisomer that bears on the sulfinyl group a residue of an alcohol, thiol or amine with a source of a nucleophile, to afford a sulfmylamine stereoisomer, followed by contacting the sulfmylamine stereoisomer with a reagent suitable for the cleavage of a sulfur-nitrogen bond, to afford an amine stereoisomer. It also provides novel intermediates useful in the metho d, and the use of certain of the intermediates in the preparation of sulfoxide and sulfmylamine stereoisomers. |