Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Patent
1998-07-10
2000-05-09
Nazario-Gonzalez, Porfirio
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
556 1, 556174, 564 15, 534 15, C07F 500, C07F 902
Patent
active
060606142
ABSTRACT:
The invention relates to novel chelating ligands which incorporate a tripodal backbone. More particularly, the invention pertains to novel tripodal ligands which form coordination compounds with a variety of metal ions, particularly, but not exclusively, trivalent metal ions and lanthanide metal ions, which are useful in nuclear medicine. A novel amine phosphinate tripodal ligand, a chelating ligand and a process therefor involving a metal ion and particularly a trivalent metal ion of the group 13 metals and the rare earths. The process comprises complexing Tc or Re or any one of the group 13 metals, Al, Ga and In, and any one of the rare earths, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Th, Dy, Ho, En, Tm, Yb and Lu, with an amine phosphinate tripodal ligand.
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Mark P. Lowe, et al., "Highly Symmetric Group 13 Metal-Phosphinato Complexes: Multinuclear NMR (.sup.27 Al, .sup.31 P, .sup.71 Ga) Determination of Stability Constants at Low pH", J. Am. Chem. Soc. 1996, 118, 10446-10456.
P. Caravan, et al., "Selectivity among, and aggregation of, lanthanide ions", Journal of Alloys and Compounds 000 (1996) 000-000.
Lowe, M.P. et al., "Tightening the Hydrophobic Belt: Effects of Backbone and Donor Group Variation on Podand Ligand Complexes of the Lanthanides", Inorg. Chem. 1998, 37, 1637-1647.
Lowe Mark P.
Orvig Chris
Nazario-Gonzalez Porfirio
The University of British Columbia
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