Claims
- 1. A 1,4,7,10-Tetraazacyclododecane compound of formula I ##STR8## in which R.sup.1, independently of one another, stand for H, a C.sub.1 -C.sub.6 alkyl radical or a metal ion equivalent,
- R.sup.2, independently of one another, stand for H, a methyl or ethyl radical,
- X stands for a direct bond or a C.sub.1 -C.sub.10 alkylene group or a C.sub.2 -C.sub.23 alkylene group interrupted by one or more oxygen atoms,
- whereby the alkyl radicals and alkylene groups are substituted optionally by one or more hydroxy radicals and/or lower alkoxy radicals and/or contain one or more carbonyl functions, and
- V means a radical of formula II ##STR9## in which R.sup.3 stands for a hydrogen atom, for a saturated, unsaturated, straight-chain or branched-chain alkyl, aryl or aralkyl radical or cyclic hydrocarbon radical with up to 40 carbon atoms,
- R.sup.4 has the meaning indicated for R.sup.3 with the exception of hydrogen or
- R.sup.3 and R.sup.4 together with the adjacent sulfur and nitrogen atoms represent a saturated 5- or 6-ring optionally containing another heteroatom,
- whereby R.sup.3 and/or R.sup.4 optionally have one or more carbonyl functions and/or are interrupted by one or more oxygen atoms and/or by one or more >N--CH.sub.2 -COOR.sup.1 groups and/or are substituted by one or more O.dbd.C.dbd.N-- or --S.dbd.C.dbd.N groups, or hydroxy, alkoxy, carboxylato, carbonyl, --CHO, halogen, amido or amino radicals, in which the hydroxy groups are present in free or protected form.
- 2. A compound according to claim 1, wherein X is a C.sub.2 -C.sub.5 alkylene group and has at least one hydroxy radical.
- 3. A compound according to claim 2, wherein --X--V stands for a radical ##STR10##
- 4. A compound according to claim 1, wherein at least two radicals R.sup.1 stand for a metal ion equivalent of a metal of atomic numbers 21-29, 31, 32, 38, 39, 42-44, 49 or 57-83 and wherein optionally free carboxyl groups, i.e., not required for complexing the metal ion of the above-mentioned atomic numbers, are present as salt of an inorganic or organic base.
- 5. A compound according to claim 1, wherein it is linked with an amino acid, a peptide or other biomolecule or a polymer.
- 6. A pharmaceutical composition, containing at least one metal complex of general formula I of claim 1 with at least two radicals R.sup.1 meaning a metal ion equivalent.
- 7. An agent for NMR diagnosis, diagnostic radiology or radiodiagnosis or radiotherapy, comprising a sulfonamide radical of formula II in an at least divalent metal complex compound or in a (chelate) compound, suitable for the production of an at least divalent metal complex compound whereby
- R.sup.3 stands for a hydrogen atom, for a saturated, unsaturated, straight-chain or branched-chain alkyl, aryl or aralkyl radical or cyclic hydrocarbon radical with up to 40 carbon atoms,
- R.sup.4 has the meaning indicated for R.sup.3 with the exception of hydrogen
- or
- R.sup.3 and R.sup.4 together with the adjacent sulfur and nitrogen atoms represent a saturated 5- or 6-ring optionally containing another heteroatom,
- whereby R.sup.3 and/or R.sup.4 optionally have one or more carbonyl functions and/or are interrupted by one or more oxygen atoms and/or by one or more >N--CH.sub.2 --COOR.sup.1 groups and/or are substituted by one or more O.dbd.C.dbd.N--, S.dbd.C.dbd.N-- groups or hydroxy, alkoxy, carboxylato, carbonyl, --CHO, halogen, amido or amino radicals.
- 8. A compound according to claim 7, wherein the sulfonamide radical is bound to a C atom of the complex compound.
- 9. A composition according to claim 8, wherein the complex compound is one of formula I of claim 1 in which at least two radicals R.sup.1 mean a metal ion equivalent.
- 10. A process for the production of a pharmaceutical agent according to claim 6, wherein a metal complex of formula I dissolved or suspended in an aqueous medium is brought into a suitable form for enteral or parenteral administration.
- 11. A process for the production of a 1,4,7,10-tetraazacyclododecane derivative of formula I according to claim 1, wherein an N-substituted sulfonic acid amide of formula IIa ##STR11## in which R.sup.3 and R.sup.4 have the meaning according to claim 1, is epoxyalkylated and the N-(epoxyalkyl)-sulfonic acid amide produced is reacted with a tetraazatricyclotridecane and the alkoxy radicals, optionally saponified with .alpha.-haloacetic ester, are alkylated, ester groups are cleaved off and finally metal ion equivalents are introduced.
- 12. A compound according to claim 2, wherein X has a hydroxy radical in .beta.-position to the tetraazacyclododecane ring.
- 13. A compound according to claim 1, wherein R.sup.3 is a hydrogen atom, a straight-chain or branched-chain C.sub.4 -C.sub.18 alkyl radical, CH.sub.3 --O--(CH.sub.2).sub.2 --, C.sub.6 H.sub.5 --CH.sub.2 --, C.sub.6 H.sub.5 --(CH.sub.2).sub.2 --, C.sub.6 H.sub.5 --,--CH.sub.2 --O--(CH.sub.2).sub.2 --, CH.sub.3 --O--C.sub.6 H.sub.4 --(CH.sub.2).sub.2 --, ##STR12##
- 14. A compound according to claim 1, wherein R.sup.4 is a straight-chain or branched C.sub.1 -C.sub.18 alkyl radical or a CH.sub.3 --C.sub.6 H.sub.4 --, C.sub.6 H.sub.5 --, O.sub.2 N--C.sub.6 H.sub.4 --, H.sub.2 N--C.sub.6 H.sub.4 --, O.dbd.C.dbd.N--C.sub.6 H.sub.4 --, or S.dbd.C.dbd.N--C.sub.6 H.sub.4 radical.
- 15. A compound according to claim 1, wherein R.sup.1 is 1/3Gd.sup.3+, R.sup.2 is H, R.sup.3 is C.sub.1-16 -alkyl or phenyl-C.sub.1-4 -alkyl and R.sup.4 is C.sub.1-6 -alkyl.
- 16. In a method of NMR diagnosis, diagnostic radiology, radiodiagnosis or radiotherapy, the improvement comprising administering a compound of claim 1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
43 40 809 |
Nov 1993 |
DEX |
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Parent Case Info
This application is a 371 of PCT/EP94/03718 filed Nov. 10, 1994.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/EP94/03718 |
11/10/1994 |
|
|
12/6/1996 |
12/6/1996 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO95/14678 |
6/1/1995 |
|
|
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5631368 |
Schultze et al. |
May 1997 |
|
Non-Patent Literature Citations (1)
Entry |
Pulukkody et al. J. Chem. Soc., Perkin Trans 2., 1993., No. 4., pp. 605-620. |