Patent ID: 8865756

Claim:
A compound having formula X: wherein A and A′ are independently selected from the group consisting of single bond, wherein, n and p are independently 0, 1, 2, or 3, and each R N is independently selected from the group consisting of hydrogen, —OH, C 1 to C 12 alkyl, C 1 to C 12 heteroalkyl, cycloalkyl, heterocycle, aryl, heteroaryl, aralkyl, alkoxy, alkoxycarbonyl, alkanoyl, carbamoyl, substituted sulfonyl, sulfonate and sulfonamide; optionally includes 1, 2, 3 or 4 nitrogens as heteroatoms; each R a is independently selected from the group consisting of —OH, —CN, —NO 2 , halogen, C 1 to C 12 alkyl, C 1 to C 12 heteroalkyl, cycloalkyl, heterocycle, aryl, heteroaryl, aralkyl, alkoxy, alkoxycarbonyl, alkanoyl, carbamoyl, substituted sulfonyl, sulfonate, sulfonamide and amino; and each r is independently 0, 1, 2, or 3; R c , R d , R e and R f are each independently selected from the group consisting of: hydrogen, C 1 to C 8 alkyl, C 1 to C 8 heteroalkyl, aralkyl and a 4- to 8-membered ring which may be cycloalkyl, heterocycle, heteroaryl or aryl, wherein, each hetero atom, if present, is independently N, O or S, each of R c , R d , R e and R f may optionally be substituted by C 1 to C 8 alkyl, C 1 to C 8 heteroalkyl, aralkyl, or a 4- to 8-membered ring which may be cycloalkyl, heterocycle, heteroaryl or aryl and wherein each heteroatom, if present, is independently N, O or S, R c and R d are optionally joined to form a 4- to 8-membered heterocycle which is optionally fused to another 3- to 6-membered heterocycle or heteroaryl ring, and R e and R f are optionally joined to form a 4- to 8-membered heterocycle which is optionally fused to another 3- to 6-membered heterocycle or heteroaryl ring; Y and Y′ are each independently carbon or nitrogen; and Z and Z′ are independently selected from the group consisting of hydrogen, C 1 to C 8 alkyl, C 1 to C 8 heteroalkyl, cycloalkyl, heterocycle, aryl, heteroaryl, aralkyl, 1-3 amino acids, —[U—(CR 4 2 ) t —NR 5 —(CR 4 2 ) t ] u —U—(CR 4 2 ) t —NR 7 —(CR 4 2 ) t —R 8 , —U—(CR 4 2 ) t —R 8 and —[U—(CR 4 2 ) t —NR 5 —(CR 4 2 ) t ] u —U—(CR 4 2 ) t —O—(CR 4 2 ) t —R 8 , wherein, U is selected from the group consisting of —C(O)—, —C(S)— and —S(O) 2 —, each R 4 , R 5 and R 7 is independently selected from the group consisting of hydrogen, C 1 to C 8 alkyl, C 1 to C 8 heteroalkyl, cycloalkyl, heterocycle, aryl, heteroaryl and aralkyl, R 8 is selected from the group consisting of hydrogen, C 1 to C 8 alkyl, C 1 to C 8 heteroalkyl, cycloalkyl, heterocycle, aryl, heteroaryl, aralkyl, —C(O)—R 81 , —C(S)—R 81 , —C(O)—O—R 81 , —C(O)—N—R 81 2 , —S(O) 2 —R 81 and —S(O) 2 —N—R 81 2 , wherein each R 81 is independently chosen from the group consisting of hydrogen, C 1 to C 8 alkyl, C 1 to C 8 heteroalkyl, cycloalkyl, heterocycle, aryl, heteroaryl and aralkyl, optionally, R 7 and R 8 together form a 4-7 membered ring, each t is independently 0, 1, 2, 3, or 4, and u is 0, 1, or 2.