Patent ID: 8581005

Claim:
A compound of formula (I): wherein A is where “a” represents the point of attachment of A to the ring structure of formula (I) and where R is H, aliphatic, aromatic or heterocyclic; and wherein D is where “d” represents the point of attachment of D to the carbon atom of C═O of formula (I); where R 1 , R 2 , R 3 , R 4 and R 5 are independently H, alkyl, aryl, phenyl, heteroaryl, arylalkyl, heterocyclic, alkenyl, allene, Br, Cl, I, F, OH, NO 2 , OCH 3 , OC 2 H 5 , O-alkyl, SH, S-alkyl, NH 2 , or NH-alkyl; and where R 6 is C, O or S; or a pharmaceutically acceptable salt thereof.