Novel compositions magnetic particles covered with gem-bisphosphonate derivatives
申请人:Port Marc
公开号:US20100297025A1
公开(公告)日:2010-11-25
The invention relates to a composition comprising acid magnetic particles (p) based on an iron compound, the acid magnetic particles (p) being complexed by one or more gem-bisphosphonate compounds, of formula I:
X-L-CH(PO
3
H
2
)
2
(I)
in which:
L represents an organic group connecting the X group to the gem-bisphosphonate group —CH(PO
3
H
2
)
2
;
X represents a chemical group capable of reacting with a biovector; all or some of the X groups of the particles optionally being coupled to a biovector.
The invention relates also to a process for the preparation of the compositions and their use, in particular as contrast products for Magnetic Resonance Imaging (MRI).
Solid-Phase Synthesis of a Nonpeptide RGD Mimetic Library: New Selective αvβ3 Integrin Antagonists
作者:Gábor A. G. Sulyok、Christoph Gibson、Simon L. Goodman、Günter Hölzemann、Matthias Wiesner、Horst Kessler
DOI:10.1021/jm0004953
日期:2001.6.1
solid-phase synthesis of a low molecular weight RGDmimetic library is described. Activities of the compounds in inhibiting the interaction of ligands, vitronectin and fibrinogen, with isolated immobilized integrins alphavbeta3 and alphaIIbbeta3 were determined in a screening assay. Highly active and selective nonpeptide alphavbeta3 integrinantagonists with regard to orally bioavailability were developed