Patent ID: 8796304

Claim:
A compound having the structure I wherein X is selected from the group consisting of CH, CF, COCH 3 and COH; R 1 and R 2 are each selected independently from the group consisting of hydrogen; C 1 -C 6 alkyl; C 1 -C 6 alkyl(C 3 -C 8 )cycloalkyl; C 1 -C 6 hydroxyalkyl; C 1 -C 6 alkoxy; CH 2 CN; CH 2 C(O)NH 2 ; C 1 -C 6 arylalkyl; 4-chlorobenzyl; C 1 -C 6 alkyl-heterocycloalkyl; halogen; and hydroxy; L is a linker selected from the group consisting of —CH 2 —CH 2 —; —CH═CH—; —CH 2 —S—; and —S—CH 2 —; and HET is a heteroaromatic group of formula II containing from 2 to 4 nitrogen atoms: wherein Y is N or CH; Z is N or C; and HET optionally is substituted with up to three substituents R 5 , R 6 and R 7 individually selected from the group consisting of hydrogen; C 1 -C 6 alkyl; halogen; cyano; halo(C 1 -C 6 )alkyl; aryl; C 1 -C 6 alkoxy, and C 1 -C 6 hydroxyalkyl; and “*” denotes the attachment point; or a pharmaceutically acceptable acid addition salt thereof.