Potent and Selective Nonpeptide Inhibitors of Caspases 3 and 7
摘要:
5-Dialkylaminosulfonylisatins have been identified as potent, nonpeptide inhibitors of caspases 3 and 7. The most active compound within this series (34) inhibited caspases 3 and 7 in the 2-6 nM range and exhibited approximately 1000-fold selectivity for caspases 3 and 7 versus a panel of five other caspases (1, 2, 4, 6, and 8) and was at least 20-fold more selective versus caspase 9. Sequence alignments of the active site residues of the caspases strongly suggest that the basis of this selectivity is due to binding in the St subsite comprised of residues Tyr204, Trp206, and Phe256 which are unique to caspases 3 and 7. These compounds inhibit apoptosis in three cell-based models: human Jurkat T cells, human chondrocytes, and mouse bone marrow neutrophils.
Synthesis of hybrid dendritic molecules with diazaphospholidine oxide grafted at the surface of octavinylsilsesquioxane (OVS)
作者:Ge Cheng、Alexandra M. Z. Slawin、Nicolas R. Vautravers、Pascal André、Russell E. Morris、Ifor D. W. Samuel、David Cole-Hamilton
DOI:10.1039/c0ob00297f
日期:——
phosphine oxide ligand, which was derivatised with a series of functional groups including bromide, vinyl, allyl and terminal alkyne. Several methods to attach the resulting precursors onto octavinylsilsesquioxane (OVS), ranging from hydrosilylation, Suzuki, Heck, Grubbs or Sonogashira coupling reactions, have been investigated. Cross-metathesis of SEMI-ESPHOS oxide dendrons containing vinyl end groups
Use of new chiral tricoordinated phosphorus borane complexes in enantioselective borane reduction of ketones: Complexes structure and mechanistic studies
New tricoordinated phosphorusborane complexes were synthesized and their use as catalysts in enantioselectiveboranereduction of prochiral aromatic and aliphatic ketones was investigated. The structure of (2R,5S)-2-o-anisyl-3-oxa-1-aza phosphabicyclo[3.3.0]octane—borane complex 1b and (2R,5S)-2,3-diphenyl-1,3-diazaphosphabicyclo[3.3.0]octane—borane complex 6a was established by X-ray diffraction
Conformational arm-wrestling: battles for stereochemical control in benzamides bearing matched and mismatched chiral 2- and 6-substituents
作者:Jonathan Clayden、Yann J. Y. Foricher、Madeleine Helliwell、Paul Johnson、David Mitjans、Victoria Vinader
DOI:10.1039/b514558a
日期:——
stereochemistry of an adjacent chiral substituent. With a chiral substituent in both ortho positions, matched/mismatched pairs of isomers result. Evidence for matched stereochemistry is provided by the clean NMR spectra of single conformers, while mismatching gives poor or unexpected selectivities in the formation of chiral substituents, or mixtures of amide conformers. Attempts to use the match-mismatch effect
Sulfonyl isatin compounds and methods of blocking apoptosis therewith
申请人:SmithKline Beecham Corporation
公开号:US06403792B1
公开(公告)日:2002-06-11
The present invention is to novel sulfonyl isatin compounds of Formula (I), their pharmaceutical compositions, and the novel inhibition of caspases for use in the treatment of apoptosis, and disease states caused by excessive or inappropriate cell death.
[EN] PHARMACEUTICALLY ACTIVE DISUBSTITUTED TRIAZINE DERIVATIVES<br/>[FR] DÉRIVÉS DE TRIAZINE DISUBSTITUÉS PHARMACEUTIQUEMENT ACTIFS
申请人:LEAD DISCOVERY CENTER GMBH
公开号:WO2012117048A1
公开(公告)日:2012-09-07
The present invention relates to disubstituted triazine derivatives and/or pharmaceutically acceptable salts thereof, the use of these derivatives as pharmaceutically active agents, especially for the prophylaxis and/or treatment of infectious diseases, including opportunistic diseases, immunological diseases, autoimmune diseases, cardiovascular diseases, cell proliferative diseases, inflammation, erectile dysfunction and stroke, and pharmaceutical compositions containing at least one of said disubstituted triazine derivatives and/or pharmaceutically acceptable salts thereof. Furthermore, the present invention relates to the use of said disubstituted triazine derivatives as inhibitors for a protein kinase.