Patent ID: 7312242

Claim:
A compound of the formula: wherein: R 1 is hydrogen, alkyl, substituted alkyl, hydroxyalkyl, alkenyl, substituted alkenyl, alkynyl, or substituted alkynyl; and R 2 is hydrogen, alkyl, substituted alkyl, hydroxyalkyl, alkenyl, substituted alkenyl, alkynyl, or substituted alkynyl; or R 1 and R 2 are together —CH 2 (CH 2 ) n CH 2 — where n is 0 to 5; and together with N form an optionally substituted ring, said ring optionally fused to a cycloalkyl or aryl group to form a bicyclic or tricyclic system, said system optionally substituted and optionally comprising one or more heteroatoms; or R 1 and R 2 are together —CH 2 (CH 2 ) n CH 2 Z-; where Z is O, S, Se, Si, P, —CO—, —SO—, —SO 2 —, or —PO—; and n is 0 to 5; and together with N form an optionally substituted ring, said ring optionally fused to a cycloalkyl or aryl group to form a bicyclic or tricyclic ring system, said system optionally substituted and optionally comprising one or more heteroatoms; or R 1 and R 2 are together —CH 2 -Z-(CH) b —; where Z is O, S, Se, Si, P, —CO—, —SO—, —SO 2 —, or —PO—; and a and b are independently 1 to 4; and together with N form an optionally substituted ring, said ring optionally fused to a cycloalkyl or aryl group to form a bicyclic or tricyclic ring system, said system optionally substituted and optionally comprising one or more heteroatoms; or a pharmaceutically acceptable salt thereof.