Open Access. Powered by Scholars. Published by Universities.®

Medicinal-Pharmaceutical Chemistry Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 3 of 3

Full-Text Articles in Medicinal-Pharmaceutical Chemistry

Hydrolytically Stable Analogues Of Sugar Phosphates And A Miniaturized In Situ Enzymatic Screen, Xiang Fei Nov 2014

Hydrolytically Stable Analogues Of Sugar Phosphates And A Miniaturized In Situ Enzymatic Screen, Xiang Fei

Student Research Projects, Dissertations, and Theses - Chemistry Department

The glmS riboswitch undergoes self-cleavage upon binding its metabolic product GlcN6P, thereby providing a negative feedback mechanism limiting translation of the glmS protein when GlcN6P is abundant. As a first step toward the development of novel antimicrobials, we have synthesized a series of GlcN6P analogues bearing phosphatase-inert surrogates in place of the natural phosphate ester functionality. The self-cleavage assay identified two such compounds that display significant riboswitch actuator activity; namely those bearing a 6-phosphonomethyl group or a 6-O-malonyl ether. These two analogues exhibit a 22-fold and a 27-fold higher catalytic efficiency, respectively, than does glucosamine. Docking experiments were ...


A. Catalysis Of Co-Prox By Water-Soluble Rhodium Fluorinated Porphyrins B. Studies Toward Fluorination Of Electron Rich Aromatics By Nucleophilic Fluoride, Shri Harsha Uppaluri Jul 2013

A. Catalysis Of Co-Prox By Water-Soluble Rhodium Fluorinated Porphyrins B. Studies Toward Fluorination Of Electron Rich Aromatics By Nucleophilic Fluoride, Shri Harsha Uppaluri

Student Research Projects, Dissertations, and Theses - Chemistry Department

The rhodium(III) derivative of a water soluble, heavily fluorinated porphyrin is shown to catalyze the low temperature, low pressure selective oxidation of carbon monoxide in hydrogen gas streams for use in fuel cell applications. The catalytic activity is a direct result of the removal of electron density from the metal center. Selectivity for CO oxidation is a direct consequence of fluorination of the porphyrin periphery, since these substituents enhance the rate of the reaction and prevent the formation of Rh(II)-Rh(II) dimmers. Significantly, the dramatic increase in rhodium hydride acidity caused by fluorination precludes hydrogen activation and ...


High Yield Synthesis Of Positron Emission Tomography Ligands For Metabotropic Glutamate Receptor Imaging, Saraanne E. Hitchcock Aug 2011

High Yield Synthesis Of Positron Emission Tomography Ligands For Metabotropic Glutamate Receptor Imaging, Saraanne E. Hitchcock

Student Research Projects, Dissertations, and Theses - Chemistry Department

Positron Emission Tomography (PET) is a powerful and non-invasive imaging technique used for human and animal organ imaging. Currently, the market for PET is project to reach $5.4 billion per year by 2015.5 This research focuses on the direct incorporation of [18F]-fluoride into PET ligands. The widespread use of PET imaging is currently frustrated, in part, by the lack of efficient fluorination chemistry.

Glutamate, one of the 20 most abundant naturally occurring amino acids, serves as a neurotransmitter in the central nervous system. Glutamate functions in this capacity by binding to ionotropic and metabotropic receptors. Metabotropic receptors ...