Patent ID: 7544714

Claim:
A purified compound having the following general formula (Formula I): wherein R 1 is a hydrocarbon chain of a fatty acid selected from the group consisting of myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, eicosatrienoic acid, arachidonic acid, eicosapentenoic acid, and docosatetraenoic acid; and wherein (a) R 3 and R 4 are hydrogens, and R 2 is a side chain of a phenyl-glycine or a phenyl-glycine derivative; (b) R 3 and R 4 are hydrogens, and R 2 is a side chain of a phenyl-alanine derivative having the following general formula (Formula IV): wherein X, Y, and Z, are independently H, OCH 3 , F, Cl, I, CH 3 , C 2 H 5 , i-C 3 H 7 , NH—CO—CH 3 , SH, NH 2 , CN, CH 2 NH 2 , COOH, CHO, NO 2 , CONH 2 , COCH 3 , or CH 2 OH, or wherein X is H, Y is OH, and Z is H, or wherein X is H, Y is H, and Z is OH; (c) R 3 is a hydrogen, and R 2 and R 4 , together, form a side chain of a proline derivative of Formula V, VI, or VII: wherein the arrow denotes C α of formula I, and wherein X is CN, CHO, CH 2 OH, CH 2 NH 2 , COOH, CH 2 CN, NH 2 , or phenyl; or (d) R 3 and R 4 are hydrogens, and R 2 is a side chain of an amino acid selected from the group consisting of serine, threonine, methionine, tyrosine, lysine, aspartic acid, and glutamic acid, and the Cα has the same stereochemistry as a D amino acid.