PubMed Health⌕ Search

Biomedical subjects

J R Hauske

Publications and source records attributed to J R Hauske.

3 recordsLinked to original sources

Potent in vitro methicillin-resistant Staphylococcus aureus activity of 2-(1H-indol-3-yl)quinoline derivatives.

A novel structural class of antibacterials, 2-(1H-indol-3-yl)quinolines, effective against methicillin-resistant Staphylococcus aureus (MRSA), was discovered from a combinatorial library. A structure-activity relationship (SAR) study was conducted to determine the pharmacophore and increase the potency of these compounds. Compounds were prepared that had minimum inhibitory concentrations (MICs) < 1.0 microg/mL against MRSA and retained activity against two strains of glycopeptide intermediate-resistant S. aureus (GISA).

Anti-Bacterial Agents↗

Design and synthesis of novel FKBP inhibitors.

Small molecule FKBP inhibitors were prepared with inhibitory activity ranging from micromolar to nanomolar. The design of these inhibitors derives from a structural analysis of the substrates for FKBP and cyclophilin. As a consequence of this analysis two key observations were made, namely: (1) amino ketone moieties are suitable as FKBP recognition elements at the P1-P1' site and (2) the P3'-P4' site will accept a trans-olefin as a suitable mimetic of a peptide moiety. The preparation of these non-peptide inhibitors is readily accomplished by a protocol which includes the synthesis of chiral propargylic amines and their subsequent conversion into vinyl zirconium reagents.

Amino Acid Isomerases↗

Ring opening cross-metathesis on solid support: a combinatorial library synthesis of highly functionalized cyclopentanes.

Ruthenium catalyzed ring opening cross-metathesis of resin-bound bicyclic alkenes with terminal aryl olefins was utilized for the construction of a combinatorial library containing highly functionalized cyclopentane derivatives. The technology described herein represents a convergent method for the diastereospecific synthesis of unique cyclopentane molecular scaffolds useful for exploratory medicinal chemistry.

Chemistry, Organic↗