Patent ID: 8415349

Claim:
A compound of formula (ID): wherein: R 1 is —C(O)NR 3 R 4 ; R 3 and R 4 are each independently selected from the group consisting of: hydrogen, alkyl, cycloalkyl, aryl, heteroaryl and heterocyclic alkyl, wherein the alkyl, cycloalkyl, aryl, heteroaryl or heterocyclic alkyl is independently unsubstituted or substituted with one or more groups independently selected from the group consisting of: alkyl, cycloalkyl, aryl, heteroaryl, alkoxyl, cycloalkoxyl, aryloxyl, heteroaryloxyl, halogen, hydroxyl, amino, cyano, hydroxyalkyl, heterocyclic alkyl, heterocyclic alkoxyl, trifluoromethyl, carboxylic acid, and carboxylic ester; or R 3 and R 4 , together with the N atom to which they are attached, form a 3- to 8-membered heterocyclic ring, wherein the 3- to 8-membered heterocyclic ring optionally contains one or more heteroatoms selected from N, O, and S, and the 3- to 8-membered ring is unsubstituted or substituted with one or more groups independently selected from the group consisting of: alkyl, aryl, heteroaryl, haloalkyl, haloalkoxyl, hydroxyl, amino, cyano, alkoxyl, aryloxyl, hydroxyalkyl, heterocyclic alkyl, carboxylic acid, carboxylic ester, and halogen.