Provided are a novel compound and an organic electronic device using the same. The novel compound is represented by the following Formula (I): ##STR00001## wherein X.sup.1 and X.sup.2 are each independently C(R.sup.a), the two (R.sup.a)s are the same or different, and the two (R.sup.a)s are joined together to form an aryl ring; X.sup.3 and X.sup.4 are each independently C(R.sup.b), the two (R.sup.b)s are the same or different, and the two (R.sup.b)s are joined together to form a heteroaryl ring containing at least one furan group or at least one thiophene group.

Disclosed herein are novel cycloalka[b]heteroaryl compounds having CX3CR1/fractalkine receptor (CX3CR1) agonistic properties, pharmaceutical compositions comprising these compounds, chemical processes for preparing these compounds and their use in the treatment or prophylaxis of diseases associated with CX3CR1 receptor activity in animals, in particular humans.

In one aspect, compounds modulating sirtuin activity are described herein. Sirtuin modulation by compounds described herein includes sirtuin activation and sirtuin inhibition. Modulation of sirtuin activity includes sirtuin activation and/or sirtuin inhibition. In some embodiments, a sirtuin modulating compound and/or salt thereof is of Formula I described herein.

In one aspect, compounds modulating sirtuin activity are described herein. Sirtuin modulation by compounds described herein includes sirtuin activation and sirtuin inhibition. Modulation of sirtuin activity includes sirtuin activation and/or sirtuin inhibition. In some embodiments, a sirtuin modulating compound and/or salt thereof is of Formula I described herein.

Compounds and compositions are disclosed, which are useful as inhibitors of acetyltransferase Eis, a mediator of kanamycin resistance in Mycobacterium tuberculosis.

Compounds and compositions are disclosed, which are useful as inhibitors of acetyltransferase Eis, a mediator of kanamycin resistance in Mycobacterium tuberculosis.

In one aspect, compounds modulating sirtuin activity are described herein. Sirtuin modulation by compounds described herein includes sirtuin activation and sirtuin inhibition. Modulation of sirtuin activity includes sirtuin activation and/or sirtuin inhibition. In some embodiments, a sirtuin modulating compound and/or salt thereof is of Formula I described herein.

In one aspect, compounds modulating sirtuin activity are described herein. Sirtuin modulation by compounds described herein includes sirtuin activation and sirtuin inhibition. Modulation of sirtuin activity includes sirtuin activation and/or sirtuin inhibition. In some embodiments, a sirtuin modulating compound and/or salt thereof is of Formula I described herein.

In one aspect, compounds modulating sirtuin activity are described herein. Sirtuin modulation by compounds described herein includes sirtuin activation and sirtuin inhibition. Modulation of sirtuin activity includes sirtuin activation and/or sirtuin inhibition. In some embodiments, a sirtuin modulating compound and/or salt thereof is of Formula I described herein.

In one aspect, compounds modulating sirtuin activity are described herein. Sirtuin modulation by compounds described herein includes sirtuin activation and sirtuin inhibition. Modulation of sirtuin activity includes sirtuin activation and/or sirtuin inhibition. In some embodiments, a sirtuin modulating compound and/or salt thereof is of Formula I described herein.