Patent ID: 8314123

Claim:
A compound according to formula D wherein n is 1; X is C; either: (1) R 2 is H, halogen, NH 2 , NHR 5 , N(R 5 ) 2 , —O—R 5 or C 1 -C 6 alkyl optionally substituted with —OR 5 ; R 1 is H, halogen, NH 2 , NHR 5 , N(R 5 ) 2 , and —O—R 5; R 3 is H, halogen, NH 2 , NHR 5 , N(R 5 ) 2 , or C 1 -C 6 alkyl optionally substituted with —O—R 5 ; R 4 is one or two substituents independently selected from 3,4-methylendioxide, halogen, —O—R 5 and C 1 -C 6 alkyl optionally substituted with —O—R 5 ; R 5 is C 1 -C 6 alkyl; or (2) R 1 is H, R 2 and R 3 are —O—CH 3 , and R 4 is selected from the group consisting of H, 3-methoxy, 2,6-dimethyl, 3-methyl, 3,5-dimethoxy and 2-methyl; or (3) R 1 and R 3 are H, R 2 is —O—CH 3 , and R 4 is H; and when there is more than one group R 5 , each of the R 5 groups may be the same or different or a pharmaceutically acceptable salt thereof; with the proviso that the compound is not a compound having (a) R 1 =R 2 =R 3 =H or (b) R 1 =R 3 =H, R 2 =methyl, n =1, X =C and R 4 =H, 2-methyl or 3-methyl.