Patent ID: 7642254

Claim:
A compound of formula (I) and geometric isomers, optical isomers, enantiomers, diastereomers, epimeric isomers, stereoisomers, tautomers, conformational isomers, anomeric isomers, compounds with one or more isotopic substitutions, salts, chemically protected forms, and prodrugs thereof, wherein: R 1 and R 2 together form, along with the nitrogen atom to which they are attached, an optionally substituted nitrogen containing heterocyclic ring having from 4 to 8 ring atoms; and R 3 is —NR N1 R N2 , wherein R N1 and R N2 are independently optionally substituted C 1-7 alkyl groups, or R N1 and R N2 together form, along with the nitrogen atom to which they are attached, an optionally substituted heterocyclic ring having 6 or 7 ring atoms.