Patent ID: 6878697

Claim:
A compound having the structure: or pharmaceutically acceptable salt thereof; wherein A-B is —(C═O)NH— or —NH(C═O)—; R E is an aliphatic, heteroaliphatic, aryl or heteroaryl moiety; R A is hydrogen or an aliphatic, heteroaliphatic, aryl or heteroaryl moiety; each occurrence of R C and R D is independently H, halogen, —CN, —S(O) h R J , —NO 2 , —COR J , —CO 2 R J , —NR J COR J , —NR J CO 2 R J , —CONR J R J , —CO(NOR J )R J , -ZR J or an aliphatic, heteroaliphatic, aryl or heteroaryl moiety; wherein h is 1 or 2; and Z is independently —O—, —S—, NR K , —C(O)—, wherein each occurrence of R J and R K is independently hydrogen, COR L , COOR L , CONR L R M , —NR L R M , —S(O) 2 R L , or an aliphatic, heteroaliphatic, aryl or heteroaryl moiety, and wherein each occurrence of R L and R M is independently hydrogen or an aliphatic, heteroaliphatic, aryl or heteroaryl moiety; z is 0, 1 or 2; w is 0, 1, 2, 3 or 4; wherein in each of the foregoing groups each aliphatic or heteroaliphatic moiety may be linear or branched, cyclic or acyclic, saturated or unsaturated, and substituted or unsubstituted, and each aryl and heteroaryl moiety may be substituted or unsubstituted; and one or both of R A and R E contains a phosphorus-containing moiety.