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US 6,641,797 B2Granted
Perfluoroalkyl-containing complexes with sugar radicals, process for their production and their use
AssigneeSchering Corporation
InventorsJohannes Platzek, Peter Mareski, Ulrich Niedballa, Bernd Raduechel, Hanns-Joachim Weinmann, Bernd Misselwitz
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Abstract
Perfluoroalkyl-containing complexes with sugar radicals of general formula I in which R represents a monosaccharide or oligosaccharide radical that is bonded via the 1-OH position or 1-SH position, Rf means a perfluorinated carbon chain, K is a metal complex, and Y and Z represent linker groups, are suitable for intravenous lymphography, for tumor diagnosis and for infarction and necrosis imaging.
Claims26
Perfluoroalkyl-containing metal complexes with sugar radicals of formula I
- in which
- R is a monosaccharide or oligosaccharide radical that is bonded via the 1-OH position or 1-SH position,
- Rf is a perfluorinated, straight-chain or branched carbon chain with the formula —CnF2nE, in which E is a terminal fluorine, chlorine, bromine, iodine or hydrogen atom, and n is a number from 4-30,
- K is a metal complex of formula II
- in which
- R1 is a hydrogen atom or a metal ion equivalent of atomic numbers 21-29, 31-33, 37-39, 42-44, 49 or 57-83, provided that at least two R1 are metal ion equivalents,
- R2 and R3, independently of one another, are hydrogen, C1-C7 alkyl, benzyl, phenyl, —CH2OH or —CH2OCH3, and
- U is —C6H4—O—CH2-ω-, —(CH2)1-5-ω, a phenylene group, —CH2—NHCO—CH2—CH(CH2COOH)—C6H4-ω-, —C6H4—(OCH2CH2)0-1—N(CH2COOH)—CH2-ω or a C1-C12 alkylene group or a C7-C12-C6H4—O group that is optionally interrupted by one or more oxygen atoms, 1 to 3 —NHCO groups or 1- to 3 —CONH groups and/or is substituted with 1 to 3 —(CH2)0-5COOH groups, whereby ω stands for the binding site to —CO—,
- or of formula III
- in which R1 has the above-mentioned meaning, R4 is hydrogen or a metal ion equivalent that is mentioned under R1, and U1 is —C6H4—O—CH2-ω-, whereby ω means the binding site to —CO—
- or of formula IV
- in which R1 and R2 have the above-mentioned meaning
- or of formula V A or V B
- in which R1 has the above-mentioned meaning,
- or of formula VI
- in which R1 has the above-mentioned meaning,
- or of formula VII
- in which R1 has the above-mentioned meaning, and
- U1 is —C6H4—O—CH2-ω-, whereby ω means the binding site to —CO—,
- or of formula VIII
- in which R1 the above-mentioned meaning,
- and in radical K, optionally present free acid groups optionally can be present as salts of organic and/or inorganic bases or amino acids or amino acid amides,
- G for the case that K means metal complexes II to VII, is a radical that is functionalized in at least three places and that is selected from radicals a) to j) below
- and
- G for the case that K means metal complex VIII, is a radical that is functionalized in at least three places and that is selected from k) or l),
- whereby α is the binding site of G to complex K, β is the binding site of G to radical Y and γ is the binding site of G to radical Z,
- Y is —CH2, δ-(CH2)nCO-β (whereby n=1-5), δ-CH2—CHOH—CO-β or δ-CH(CHOH—CH2OH)—CHOH—CHOH—CO-β, whereby δ is the binding site to sugar radical R and β is the binding site to radical G,
- Z stands for γ-COCH2—N(C2H5)—SO2-ξ,
- γ-COCH2—O—(CH2)2—SO2-ξ,
- or
- γ-NHCH2CH2—O—CH2CH2-ξ,
- whereby γ is the binding site of Z to radical G, and ξ is the binding site of Z to perfluorinated radical Rf,
- and
- 1 and m, independently of one another, are the whole numbers 1 or 2,
- and
- p is a whole number 1 to 4.
33 more elements
Dependencies are inferred from the claim text.