Bristol-Myers Squibb Company
PRODRUG COMPOUNDS

Abstract:

Disclosed are compounds of Formula (I), Formula (II), Formula (III), and Formula (IV): or salts thereof, wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are defined herein. Also disclosed are methods of using the compounds as prodrugs of an inhibitor of signaling through Toll-like receptor 7, or 8, or 9, and pharmaceutical compositions comprising such compounds. These prodrugs compounds are useful in treating inflammatory and autoimmune diseases. ##STR00001##