Abstract
An asymmetric transfer hydrogenation via dynamic kinetic resolution of a broad range of rac- α-(purin-9-yl)cyclopentones was first developed. A series of cis-β-(purin-9-yl)cyclopentanols were obtained with up to 97% yield, >20/1 dr, and >99% ee. This also provides an efficient synthetic route to a variety of chiral carbocyclic nucleosides.
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