Patent ID: 7262207

Claim:
A compound of formula (I), or pharmaceutically acceptable salt thereof, wherein X is a member selected from the group consisting of CH 2 , CHF and CF 2 ; R is selected from the group consisting of alkylcarbonyl, arylcarbonyl, cyano, R 4 R 5 NC(O)—, and B(OR 6 ) 2 ; R 1 is selected from the group consisting of alkoxyalkyl, alkyl, alkylcarbonyl, alkenyl, alkynyl, allenyl, arylalkyl, cycloalkyl, cycloalkylalkyl, cyano, haloalkyl, haloalkenyl, and hydroxyalkyl; R 2 and R 3 are independently selected from the group consisting of hydrogen, alkoxyalkyl, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aryl, arylalkyl, heterocycle, heterocyclealkyl, and hydoxyalkyl, wherein said heterocycle is further selected from the group consisting of pyrimidine, pyridinyl, and piperidine; R 4 , R 5 and R 6 are each independently selected from the group consisting of hydrogen, alkyl, and arylalkyl, with a proviso when R is cyano, X is CH 2 , and R 1 is alkyl, wherein the alkyl is not methyl.