CPC A61K 49/124 (2013.01) [A61K 49/085 (2013.01); A61K 49/122 (2013.01); C02F 1/683 (2013.01); C02F 2101/006 (2013.01); C02F 2101/20 (2013.01)] | 20 Claims |
1. A compound of formula Mz(L), wherein:
M is a metal ion;
L is a ligand of formula I
A-[W—X—Y—N(CH2COOH)2]n (formula I);
and
z is an integer of 1 to 4,
wherein, with reference to formula I,
A is cyclodextrin or a derivative thereof, a disaccharide, starch or other carbohydrate polymer;
W is a chemical bond, or a linker comprising a substituted or unsubstituted C1-C5 carbon chain;
X is a five or six membered ring having one or more heteroatoms;
Y is a linker comprising a substituted or unsubstituted C1-C3 carbon chain; and
n is an integer of 2 to 8.
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