A Research Seminar: Chemoselective Reactions for Late-Stage Skeletal Editing and Molecular Sensing

January 9th

Hall No. 1


Dr. Ori Green from the Laboratory for Organic Chemistry, ETH Zurich

Dr. Ori Green, Laboratory for Organic Chemistry, ETH Zurich
Synthetic organic chemistry plays a crucial role in developing advanced technologies that benefit society, from large-scale manufacturing to individualized healthcare. In this lecture, I describe approaches for leveraging chemical design and synthetic strategies to address challenges in drug discovery and live-cell images.
In the first part of the talk, I discuss an unusual methodology to insert a nitrogen atom into the core skeleton of indoles to afford quinazolines.1 The compatibility of the reaction with many common functional groups makes it a promising route for making various types of quinazolines, which are relevant pharmaceutically targets. Thus, the methodology was applied in the context of late-stage skeletal editing of several commercial drugs, clearly highlighting the reaction’s broad potential for drug discovery.
In the second part of the talk, I describe the design and synthesis of a new chemical-responsive trigger that recognizes CO2 with exquisite selectivity.2 Based on this discovery, a large family of selective fluorescent CO2 sensors was designed, synthesized, and evaluated. The modularity in reactivity and optical properties of these molecular sensors allows their use in a broad spectrum of multidisciplinary applications, including gas mixtures sensing, chemical reaction monitoring, and enzymatic inhibition assays. Notably, these sensors were compatible with biological systems and could be used in live-cell imaging.
References 1) “Late-stage diversification of indole skeletons through nitrogen atom insertion.” Julia C. Reisenbauer ¥, Ori Green¥, Allegra Franchino, Patrick Finkelstein, Bill Morandi* Science, 2022, 377, 1104-1109. 2) “Activity-Based Approach for Selective Molecular CO2 Sensing.” Ori Green¥,

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