Organic compounds -- part of the class 532-570 series – Organic compounds – Rare earth containing
Patent
1992-10-27
1994-07-12
Geist, Gary
Organic compounds -- part of the class 532-570 series
Organic compounds
Rare earth containing
534 12, 534 13, 534 15, 556 1, 556 45, 556 57, 556 61, 556113, 556136, 556146, 424 9, A61K 3100
Patent
active
053289927
ABSTRACT:
Compounds of the formula ##STR1## in which R is alkyl having up to 4 carbon atoms, n has an average value of at least 9, X is a radical of the formula --C(.dbd.O)--(NH--SO.sub.2).sub.m -- in which m is 0 or 1 and, if m is 1, the carhonyl group may be bonded to the oxygen atom or to the nitrogen atom, and each of the radicals A.sub.1, A.sub.2 and A.sub.3, independently of the others, is hydrogen or an acyl radical, and salts of salt-forming compounds of formula I, as well as metal complexes of compounds of formula I, in which A.sub.1, A.sub.2 and A.sub.3 are hydrogen can be used as metal chelators and as auxiliaries in diagnosis.
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Moerker Theophile
Peter Heinrich
Ciba-Geigy Corp.
Fishman Irving M.
Geist Gary
Kaiser Karen G.
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