Patent ID: 8889870

Claim:
A compound represented by general formula I: wherein X is —C(O)NR 19 — wherein R 19 is hydrogen or alkyl; R 1 is selected from the group consisting of H, NH 2 , SR 20 , and S(O)R 20 ; R 2 is hydrogen; R 3 is hydrocarbyl or substituted hydrocarbyl having at least 5 carbon atoms and selected from the group consisting of carbocyclic alkyl, alkyl (straight or branched chain), and carbocyclic aryl; each R 20 independently is H or alkyl; Z 1 is (CR 4 R 5 ) n ; Z 2 is (CR 6 R 7 ) m ; Y is N; n is 2; m is 1; Ar 1 is selected from the group consisting of phenyl, pyridyl, benzopyridyl, imidazolyl, thiazolyl, and oxazolyl; and each R 4 , R 5 , R 6 and R 7 are independently hydrogen; or a racemic mixture or enantiomer of said compound or a pharmaceutically acceptable salt thereof.