Patent ID: 8093246

Claim:
A compound of the formula: or a pharmaceutically acceptable salt thereof, wherein: L 1 is a bond, —C(O)—, —SO 2 —, or —C(R 4 ) 2—; L 2 is a bond, —O—, —C(O)—, —SO 2 —, —C(NOH)—, or —C(R 5 ) 2—; A 2 is optionally substituted cycloalkyl, aryl or heterocycle; R 1 is hydrogen, halogen, —OH, —NH 2 , —NO 2 , —CN, —C(O)OR 4 , or optionally substituted alkyl; R 2 is hydrogen, halogen, —OH, —NH 2 , —NO 2 , —CN, —C(O)OR 4 , or optionally substituted alkyl; each R 3 is independently ═O or optionally substituted lower alkyl; each R 4 is independently hydrogen or lower alkyl; each R 5 is independently hydrogen, fluoro, hydroxyl or lower alkyl, provided that when one of R 5 is hydroxyl, the other is neither hydroxyl nor fluoro; each R 6 is halogen, —OH, —NH 2 , —NO 2 , —CN, or optionally substituted alkyl; m is 0-4; and p is 0-2.