Patent ID: 7034052

Claim:
A compound of formula (I): wherein: Y is —C(O)—, —CH 2 —, —CH 2 C(O)— or —SO 2 —; X is H; Z is (C 0-4 -alkyl)-C(O)R 3 , C 1-4 -alkyl, (C 0-4 -alkyl)-OH, (C 1-4 -alkyl)-O—(C 1-4 -alkyl), (C 1-4 -alkyl)-SO 2 (C 1-4 -alkyl), (C 0-4 -alkyl)-SO(C 1-4 -alkyl), (C 0-4 -alkyl)-NH 2 , (C 0-4 -alkyl)-N(C 1-8 -alkyl) 2 , (C 0-4 -alkyl)-N(H)(OH), or CH 2 NSO 2 —(C 1-4 -alkyl); R 1 and R 2 are independently C 1-8 -alkyl, cycloalkyl, or (C 1-4 -alkyl)-cycloalkyl; R 3 is, NR 4 R 5 , OH, or O—(C 1-8 -alkyl); R 4 is H; R 5 is —OH, or —O—C(O)R 6 ; R 6 is C 1-8 -alkyl, amino-(C 1-8 -alkyl), (C 1-8 -alkyl)-(C 3-6 -cycloalkyl), C 3-6 -cycloalkyl, phenyl, benzyl, or aryl; or a pharmaceutically acceptable salt, solvate, stereoisomer or clathrate thereof.