Patent ID: 6903070

Claim:
A compound of the formula: wherein R 3 and R 5 are selected from the group consisting of: (a) R 5 is hydrogen; and R 3 is a group of formula (i): (b) R 5 is hydrogen; and R 3 is a group of formula (ii): (c) R 3 is —OH; and R 5 is a group of formula (iii): and (d) R 3 is —OH; and R 3 is a group of formula (iv): R 20 is —R a —Y—R b —(Z) x , —R f , —C(O)R f , or —C(O)—R a —Y—R b —(Z) x ; Y is selected from the group consisting of oxygen, sulfur, —S—S—, —NR c —, —S(O)—, —SO 2 —, —NR c C(O)—, —OSO 2 —, —OC(O)—, —NR c SO 2 —, —C(O)NR c —, —C(O)O—, —SO 2 NR c —, —SO 2 O—, —P(O)(OR c )O—, —P(O)(OR c )NR c —, —OP(O)(OR c )O—, —OP(O)(OR c )NR c —, —OC(O)O—, —NR c C(O)O—, —NR c C(O)NR c —, —OC(O)NR c —, —C(═O)— and —NR c SO 2 NR c —; each Z is independently selected from hydrogen, aryl, cycloalkyl, cycloalkenyl, heteroaryl and heterocyclic; R a is selected from the group consisting of alkylene, substituted alkylene, alkenylane, substituted alkenylene, alkynylene and substituted alkynylene; R b is selected from the group consisting of a covalent bond, alkylene, substituted alkylene, alkenylene, substituted alkenylene, alkynylene and substituted alkynylene, provided R b is not a covalent bond when Z is hydrogen; each R c is independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cycloalkyl, substituted cycloalkyl, cycloalkenyl, substituted cycloalkenyl, aryl, heteroaryl, heterocyclic and —C(O)R d ; each R d is independently selected from the group consisting of alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cycloalkyl, substituted cycloalkyl, cycloalkenyl, substituted cycloalkenyl, aryl, heteroaryl and heterocyclic; R f is alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cycloalkyl, substituted cycloalkyl, cycloalkenyl, substituted cycloalkenyl, aryl, heteroaryl, or heterocyclic; and x is 1 or 2; or a pharmaceutically-acceptable salt, stereoisomer or prodrug thereof.