[EN] THE R-ISOMER OF BETA AMINO ACID COMPOUNDS AS INTEGRIN RECEPTOR ANTAGONISTS DERIVATIVES [FR] ISOMERE R DE COMPOSES D'ACIDES AMINES BETA EN TANT QUE DERIVES ANTAGONISTES DU RECEPTEUR DES INTEGRINES
R-Isomers of Arg-Gly-Asp (RGD) mimics as potent αvβ3 inhibitors
摘要:
The integrin alpha(v)beta(3), vitronectin receptor, is expressed in a number of cell types and has been shown to mediate adhesion of osteoclasts to bone matrix, vascular smooth muscle cell migration, and angiogenesis. We recently disclosed the discovery of a tripeptide Arg-Gly-Asp (RGD) mimic, which has been shown to be a potent inhibitor of the integrin alpha(v)beta(3) and has excellent anti-angiogenic properties including its suppression of tumor growth in animal models. In other investigations involving RGD mimics, only compounds containing the S-isomers of the beta-amino acids have been shown to be potent. We were surprised to find the potencies of analogs containing enantiomerically pure S-isomers of beta-amino acids which were only marginally better than the corresponding racemic mixtures. We therefore synthesized RGD mimics containing R-isomers of beta-amino acids and found them to be relatively potent inhibitors of alpha(v)beta(3). One of the compounds was examined in tumor models in mice and has been shown to significantly reduce the rate of growth and the size of tumors. (c) 2007 Elsevier Ltd. All rights reserved.
The present invention relates to a class of compounds represented by the Formula I.
1
or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising compounds of the Formula I, and methods of selectively inhibiting or antagonizing the &agr;
v
&bgr;
3
and/or the &agr;
v
&bgr;
5
integrin.
R-isomer of beta amino acid compounds as integrin receptor antagonists derivatives
申请人:Rogers Thomas
公开号:US20050020505A1
公开(公告)日:2005-01-27
The present invention relates to a class of compounds represented by the Formula I
or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising compounds of the Formula I, and methods of selectively inhibiting or antagonizing the α
v
β
3
and/or the α
v
β
5
integrin without significantly inhibiting the α
v
β
6
integrin.