Pharmaceutical compositions

Details Pharmaceutical compositions Pharmaceutical compositions

C - Chemistry, Metallurgy

07

K

167/122, 99/61,

C07K 5/04 (2006.01) A23K 1/175 (2006.01) A23L 1/304 (2006.01) A61K 31/315 (2006.01) C07D 213/69 (2006.01) C07D 309/40 (2006.01)

Patent

CA 1290096

ABSTRACT PHARMACEUTICAL COMPOSITIONS Zinc(II) complexes in which at least one ligand is provided by a compound being: (1) 3-hydroxy-4-pyrone or a 3-hydroxy-4-pyrone in which one or more of the hydrogen atoms attached to ring carbon atoms are replaced by an aliphatic hydrocarbon group of 1 to 6 carbon atoms; or (2) a 3 hydroxypyrid-2-one or 3-hydroxypyrid-4-one in which the hydrogen atom attached to the nitrogen atom is replaced by an aliphatic acyl group, by an aliphatic hydrocarbon group of 1 to 6 carbon atoms, or by an aliphatic hydrocarbon group substituted by one or, except in the case of ionisable groups, more than one substituent selected from aliphatic acyl, alkoxy, aliphatic amine, aliphatic amide, carboxy, aliphatic ester, halogen, hydroxy and sulpho groups and, optionally, in which one or more of the hydrogen atoms attached to ring carbon atoms are replaced by one of said substituents, by an aliphatic hydrocarbon group of 1 to 6 carbon atoms, or by an aliphatic hydrocarbon group substituted by an alkoxy, aliphatic ester, halogen or hydroxy group; are of value in medicine, particularly in the systemic treatment of zinc depletion. Mixtures of these zinc complexes with the metal-free compound(s) providing the ligands contained therein and with iron(III) complexes containing ligands of types (1) and (2) are also of value.

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