Dynamic Kinetic Resolution of α-Purine Substituted Alkanoic Acids: Access to Chiral Acyclic Purine Nucleosides

Enzyme-Catalyzed Dynamic Kinetic Resolution of 2-Formylbenzoic Acids for the Asymmetric Synthesis of Phthalidyl Esters and Related Prodrugs

An enzyme-catalyzed dynamic kinetic resolution strategy was applied for the asymmetric synthesis of phthalidyl esters in high yields (up to 95%) and enantiomeric purities (up to 99% ee) through a direct one-pot procedure. Preparation of phthalidyl ester prodrugs and a scale-up reaction demonstrated the potential of this method for practical applications.

Palladium-catalyzed asymmetric allylic amination of a vinylethylene carbonate with N-heteroaromatics

Highly enantioselective allylic amination of a vinylethylene carbonate with N-heteroaromatics is enabled by asymmetric palladium catalysis for the synthesis of chiral acyclic nucleosides and isonucleosides.

Benzotetramisole catalyzed kinetic resolution of 2H-azirines

An unprecedented benzotetramisole (BTM)-catalyzed kinetic resolution for the efficient synthesis of chiral 2H-azirines is described. This protocol provides two chiral isomers in one step with broad scope, good yield and high enantioselectivity. In addition, the optically pure 2H-azirine products have proven to be useful building blocks for further synthetic transformations.