Endoperoxide Carbonyl Falcipain 2/3 Inhibitor Hybrids: Toward Combination Chemotherapy of Malaria through a Single Chemical Entity
作者:Peter Gibbons、Edite Verissimo、Nuna C. Araujo、Victoria Barton、Gemma L. Nixon、Richard K. Amewu、James Chadwick、Paul A. Stocks、Giancarlo A. Biagini、Abhishek Srivastava、Philip J. Rosenthal、Jiri Gut、Rita C. Guedes、Rui Moreira、Raman Sharma、Neil Berry、M. Lurdes S. Cristiano、Alison E. Shone、Stephen A. Ward、Paul M. O’Neill
DOI:10.1021/jm1009567
日期:2010.11.25
We extend our approach of combination chemotherapy through a single prodrug entity (O'Neill et al. Angew. Chem., Int. Ed. 2004, 43, 4193) by using a 1,2,4-trioxolane as a protease inhibitor carbonyl-masking group. These molecules are designed to target the malaria parasite through two independent mechanisms of action: iron(II) decomposition releases the carbonyl protease inhibitor and potentially eytotoxic C-radical species in tandem. Using a proposed target "heme", we also demonstrate heme alkylation/carbonyl inhibitor release and quantitatively measure endoperoxide turnover in parasitized red blood cells.
Dipeptide derivative and prophylactic and therapeutic agent for bone diseases containing the same
申请人:SUNTORY LIMITED
公开号:EP0543310B1
公开(公告)日:1996-03-27
US5081284A
申请人:——
公开号:US5081284A
公开(公告)日:1992-01-14
Synthesis of novel chiral bidentate hydroxyalkyl-N-heterocyclic carbene ligands and their application in palladium-catalyzed Mizoroki–Heck couplings and asymmetric addition of diethylzinc to benzaldehyde
作者:Laleh Faraji、Khosrow Jadidi、Behrouz Notash
DOI:10.1016/j.tetlet.2013.11.027
日期:2014.1
A small library of new chiral bidentate hydroxyalkyl-imidazolium salts 1 is conveniently synthesized on multi-gram scale from inexpensive and commercially available chiral pool amino acids. The corresponding carbenes, generated by deprotonation of imidazolium salts 1, in combination with palladium(II) chloride were tested in the Mizoroki–Heck coupling reaction. The most significant results in terms
development of biologically active compounds. Moreover, the chiral diamino alcohols, 1, can be used in the asymmetrical reactions as a catalyst to increase reaction rate and as a chiral auxiliary or chiralligand to induce the chirality in the synthesis of chiral products. Enantioselective allylicoxidation of olefins using copperchiral complexes have been the subject of great interest during the