Potent Dipeptide Inhibitors of the pp60c-src SH2 Domain
摘要:
The design, synthesis, and evaluation of dipeptide analogues as ligands for the pp60(c-src) SH2 domain are described. The critical binding interactions between Ac-Tyr-Glu-N(n-C5H11)(2) (2) and the protein are established and form the basis for our structure-based drug design efforts. The effects of changes in both the C-terminal (11-27) and N-terminal (51-69) portions of the dipeptide are explored. Analogues with reduced overall charge (92-95) are also investigated. We demonstrate the feasibility of pairing structurally diverse subunits in a modest dipeptide framework with the goal of increasing the druglike attributes without sacrificing binding affinity.
Nitrogen positional scanning in tetramines active against HIV-1 as potential CXCR4 inhibitors
作者:Raimon Puig de la Bellacasa、Albert Gibert、Jesús M. Planesas、Laia Ros-Blanco、Xavier Batllori、Roger Badía、Bonaventura Clotet、José Esté、Jordi Teixidó、José I. Borrell
DOI:10.1039/c5ob02419f
日期:——
The paradigm, derived from bicyclams, by which it is necessary to use the p-phenylene moiety as the central core in order to achieve high HIV-1 antiviral activities has been reexamined for structures 4.
[Object] To provide a medicine useful for treatment and prevention of hyperlipidemia, further for the treatment and prevention of cholestasis-accompanying hepatopathy, particularly primary biliary cirrhosis and primary sclerosing cholangitis, and for the treatment and prevention of obesity and fatty liver.
[Means] A benzothiazepine compound represented by the following formula (1), having a thioamide bond and a quaternary ammonium substituent.
Small Peptides Containing Phosphotyrosine and Adjacent αMe-Phosphotyrosine or Its Mimetics as Highly Potent Inhibitors of Grb2 SH2 Domain
作者:Wang-Qing Liu、Michel Vidal、Nohad Gresh、Bernard P. Roques、Christiane Garbay
DOI:10.1021/jm9911074
日期:1999.9.1
small peptides with the sequence mAZ-pTyr-Xaa-Asn-NH(2), where Xaa denotes alpha-methylphosphotyrosine or its carboxylic mimetics, were synthesized as inhibitors of the Grb2SH2domain. Peptide 3 with (alpha-Me)pTyr as Xaa has the highest affinity for Grb2 (K(d) = 3 +/- 1 nM) and exhibits to date the best inhibitory activity (IC(50) = 11 +/- 1 nM) to displace PSpYVNVQN-Grb2 interaction in an ELISA test
Streptogramin derivatives, their preparation and compositions containing them
申请人:Aventis Pharma S.A.
公开号:US20030149004A1
公开(公告)日:2003-08-07
Group A streptogramin derivatives of general formula (I) in which:
R
1
represents a halogen atom or an azido or thiocyanato radical,
R
2
represents a hydrogen atom or a methyl or ethyl radical,
R
3
represents a hydrogen atom, or the residue of an aliphatic, cycloaliphatic, aromatic, araliphatic, heterocyclic or heterocyclylaliphatic ester which may be substituted, and
the bond
- - -
represents a single bond (stereochemistry 27R) or a double bond,
as well as its salts when they exist.
1
A pharmaceutical useful as a therapeutic agent and a preventive agent for hyperlipemia, and a pharmaceutical useful as a therapeutic agent and a preventive agent for hepatic disorders associated with cholestasis, particularly, primary biliary cirrhosis and primary sclerosing cholangitis, and a pharmaceutical useful as a therapeutic agent and a preventive agent for obesity, fatty liver and steatohepatitis are provided. A benzothiazepine or benzothiepine compound represented by the following formula (1A) having a thioamide bond and a quaternary ammonium substitutent: