CONTRAST AGENTS FOR MAGNETIC RESONANCE IMAGING AND SPECTROSCOPY CONSISTING OF A CYCLIC OLIGOAMID CORE OF 3 TO 4 IDENTICIAL MONOMER UNITS WITH 3 TO 4 PARAMAGNETIC CHELATE SIDE CHAINS
申请人:Axelsson Oskar
公开号:US20090110640A1
公开(公告)日:2009-04-30
The present invention relates to: Compounds of formula (I) consisting of a cyclic polymer core A and groups -L-X attached to said core A-(L-X)
n
(I) wherein A denotes a cyclic polymer which is comprised of 3 or 4 identical monomers which are connected by amide bonds; L may be present or not and if present is that same or different and denotes a linker moiety, X is the same or different and denotes a chelator; and n denotes an integer of 3 or 4; Compound of formula (II) consisting of a cyclic polymer core A and groups -L-X′ attached to said core A-(L-X′)
n
(H) wherein A denotes a cyclic polymer which is comprised of 3 or 4 identical monomers which are connected by amide bonds; L may be present or not and if present is that same or different and denotes a linker moiety, X is the same or different and denotes a paramagnetic chelate consisting of a chelator X and a paramagnetic metal ion M; and n denotes an integer of 3 or 4; And compositions comprising compounds of formula (II) and their use as contrast agents in magnetic resonance (MR) imaging (MRI) and magnetic resonance spectroscopy (MRS).