Patent ID: 7273865

Claim:
A compound of formula I wherein, R 1 is selected from morpholin-4-yl, phenyl and tetrahydropyran-4-yl; R 2 is selected from —(CH 2 ) n -aryl; —(CH 2 ) n -aryl substituted by one or more substituents selected from the group consisting of halogen, lower alkoxy, lower alkyl, —(CH 2 ) n NR′R″, —O(CH 2 ) n —O-lower alkyl, and —(CH 2 ) n -heterocyclyl; heteroaryl; heteroaryl substituted by one or more substituents, selected from the group consisting of lower alkyl, lower alkoxy, —(CH 2 ) n NR′R″, —(CH 2 ) n -heterocyclyl, and —(CH 2 ) n -heterocyclyl substituted by one or more substituents selected from hydroxy, lower alkoxy, —(CH 2 ) n —OH, —(CH 2 ) n —O-lower alkyl and lower alkyl; —(CH 2 ) n -cycloalkyl; —(CH 2 ) n —O-lower alkyl; NR′R″; benzo[1,3]dioxole; 2-methyl-1-oxo-2,8-diaza-spiro[4,5]decane; 2-oxa-5-aza-bicyclo [2.2.1]heptane; or 1-oxa-8-aza-spiro[4.5]decane; R′ and R″ are independently from each other selected from lower alkyl, —(CH 2 ) n -O-lower alkyl, cycloalkyl, and cycloalkyl substituted by hydroxy; and n is 0, 1 or 2; or a pharmaceutically acceptable salt thereof.