Patent ID: 7982034

Claim:
A compound having a structure according to Formula I: wherein a is 1; R 2 is (═O), such that b is 0; R 4 is NR 7 R 8 ; R 6 is H; and R 7 , R 8 , and R 5 are members independently selected from H, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl and a structure according to formula IV; wherein R 14 is selected from substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted acyl, substituted or unsubstituted aryl, and substituted or unsubstituted heteroaryl, an amino acid, and a peptide comprising between 2 and 5 amino acids, and wherein if R 8 is a structure according to Formula IV, then R 7 is H; R 1 is a structure according to Formula II: wherein R 9 is H; and R 10 and R 11 are —OH ; wherein at least one member selected from R 5 , R 7 , and R 8 , alone or together with the atom to which it is covalently bonded, is a carbamate .