Patent ID: 8921543

Claim:
A compound of the following structure: and its biological salts, wherein C is a non-conjugated chain of 10-50 linear atoms selected from a group consisting of carbon, oxygen and nitrogen and wherein C is substituted with substituents selected from a group consisting of hydrogen, an alkyl having 1 to 20 carbons, a hydroxyl, a carbonyl, and RGM; R 1 -R 11 and R 13 -R 14 are selected from a group consisting of hydrogen, an alkyl having 1 to 20 carbons, an alkoxy having 1-20 carbons, a trifluoromethyl, a halogen, a methylthio, a sulfonyl, a carbonyl, a hydroxyl, an amino, a thiol or a RGM; X is O or S; N is 0 to 3; wherein RGM is an activated ester, acyl halide, aldehyde, anhydride, carbodiimide, haloacetamide, isocyanate or maleimide.