Patent ID: 7714167

Claim:
A chiral bishydroxamic acid ligand of a structure I: wherein: R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are each independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, alkoxy, alkylamino, heterocyclyl, aryl, heteroaryl, and arylalkyl; or wherein R 1 and R 2 , together with the atom to which they are attached, form a substituted or unsubstituted ring selected from the group consisting of cycloalkyl, heterocyclyl, and aryl; or wherein R 4 and R 5 , together with the atom to which they are attached, form a substituted or unsubstituted ring selected from the group consisting of cycloalkyl, heterocyclyl, and aryl; R 7 , R 8 , R 9 , and R 10 are each independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, alkoxy, alkylamino, heterocyclyl, aryl, heteroaryl, and arylalkyl; or wherein R 7 and R 9 , together with the atoms to which they are attached, form a substituted or non-substituted ring selected from the group consisting of cycloalkyl and heterocyclyl; -Z- is selected from the group consisting of —CO(O)— and —S(O) 2 —.