Abstract
A highly enantioselective enamide hydrogenation route to the title amine was developed. Highlights of the synthesis include an efficient two-step synthesis of a 2-sulfonyl 4-pyridyl ethyl ketone, a simple enamide synthesis by direct condensation of propionamide with a ketone, catalytic asymmetric enamide hydrogenation employing the in-house-developed ligand MeO-BIBOP, and a mild epimerization-free deprotection of a propionamide using Koenig’s procedure.
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