Patent ID: 8263767

Claim:
A compound having the formula: wherein n is 2 and indicates the number of enchained nitrogen atoms in the condensed 6 member ring; m is 0 or 1; R 1 is aryl, heteroaryl or alkyl; R 2 is selected from the group consisting of C 1-6 hydrocarbyl, alkylacyl and hydroxyalkyl; R 3 is selected from the group consisting of aryl, heteroaryl, or alkyl; R 4 is H, OH, —O—(C 1-6 alkyl), —NH—(C 1-6 alkyl), and oxide; R 5 is selected from the group consisting of H, halogen, C 1-6 alkyl, O—(C 1-6 alkyl), aryl, heteroaryl, —C(═O)(C 1-6 alkyl), substituted and un-substituted oxazolin-2-yl; X is selected from the group consisting of O, NH, —C(═O)— and —N═CH—; and L is selected from the group consisting of alkylene, and carbonyl; Nitrogen atoms are not present on the bridge.