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Medicinal-Pharmaceutical Chemistry Commons

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Full-Text Articles in Medicinal-Pharmaceutical Chemistry

“Zipped Synthesis” By Cross-Metathesis Provides A Cystathionine Β‑Synthase Inhibitor That Attenuates Cellular H2S Levels And Reduces Neuronal Infarction In A Rat Ischemic Stroke Model, Christopher D. Mccune, Su Jing Chan, Matthew L. Beio, Weijun Shen, Woo Jin Chung, Laura M. Szczesniak, Chou Chai, Shu Qing Koh, Peter T.-H. Wong, David B. Berkowitz Mar 2016

“Zipped Synthesis” By Cross-Metathesis Provides A Cystathionine Β‑Synthase Inhibitor That Attenuates Cellular H2S Levels And Reduces Neuronal Infarction In A Rat Ischemic Stroke Model, Christopher D. Mccune, Su Jing Chan, Matthew L. Beio, Weijun Shen, Woo Jin Chung, Laura M. Szczesniak, Chou Chai, Shu Qing Koh, Peter T.-H. Wong, David B. Berkowitz

David Berkowitz Publications

The gaseous neuromodulator H2S is associated with neuronal cell death pursuant to cerebral ischemia. As cystathionine β-synthase (CBS) is the primary mediator of H2S biogenesis in the brain, it has emerged as a potential target for the treatment of stroke. Herein, a “zipped” approach by alkene cross-metathesis into CBS inhibitor candidate synthesis is demonstrated. The inhibitors are modeled after the pseudo-C2-symmetric CBS product (L,L)-cystathionine. The “zipped” concept means only half of the inhibitor needs be constructed; the two halves are then fused by olefin cross-metathesis. Inhibitor design is also mechanism-based, exploiting the favorable kinetics associated with …


Exploiting Enzymatic Dynamic Reductive Kinetic Resolution (Dyrkr) In Stereocontrolled Synthesis, Gregory A. Applegate, David B. Berkowitz Jan 2015

Exploiting Enzymatic Dynamic Reductive Kinetic Resolution (Dyrkr) In Stereocontrolled Synthesis, Gregory A. Applegate, David B. Berkowitz

David Berkowitz Publications

Over the past two decades, the domains of both frontline synthetic organic chemistry and process chemistry have seen an increase in crosstalk between asymmetric organic/organometallic approaches and enzymatic approaches to stereocontrolled synthesis. This review highlights the particularly auspicious role for dehydrogenase enzymes in this endeavor, with a focus on dynamic reductive kinetic resolutions (DYRKR) to “deracemize” building blocks, often setting two stereocenters in so doing. The scope and limitations of such dehydrogenase-mediated processes are overviewed, as are future possibilities for the evolution of enzymatic DYRKR.