121 21212 2 +2+The present invention provides compounds of Formula I and related compositions and methods. Formula (I). R and Reach refer to a branched or unbranched carbon chain of from 1 to 20 carbons having at least one basic function Rand R are the same or different X and X are independently selected from H and CO Z where Z is a peptide moiety incorporating from 1 to 5 amino acids or a pharmaceutically acceptable salt thereof X and Xare the same or different M is a divalent metal cation selected from magnesium (Mg) calcium (Ca2+) and zinc (Zn) A and B are each a molecule having at least one acidic function either A or B but not both may be absent and when both A and B are present A and B may be the same or different. In a particular embodiment at least one of A and B or both are fatty acids. A representative example of the application is the compound Magnesium Lysinate bis docosapentaenoic acid shown hereafter Formula The complexes of the application are intended for pharmaceutical compositions or as food additive notably to treat conditions responsive to treatment with polyunsaturated fatty acids.
