Patent ID: 7211573

Claim:
A compound of formula I wherein R is halogen, lower alkyl, lower alkyl substituted by halogen; R 1 is hydrogen, lower alkyl, lower alkyl substituted by halogen or hydroxy, lower alkenyl, —(CH 2 ) n -cycloalkyl, —(CH 2 ) n —COR′, benzyl optionally substituted by halogen, or —(CH 2 ) n -morpholinyl; R′ is lower alkoxy, hydroxy, or amino; R 2 is hydrogen, lower alkyl, di-lower alkyl, lower alkyl substituted by halogen or hydroxy, benzyl, or cycloalkyl; R 3 is lower alkyl, lower alkyl substituted by halogen, benzyl optionally substituted by two halogen atoms, —(CH 2 ) n -cycloalkyl, or —(CH 2 ) n -pyridinyl; X is —CR 4 R 4′ — or —CR 4 R 4′ —O—; R 4 and R 4′ are each independently hydrogen, halogen, lower alkyl, lower alkoxy, hydroxy, or —CH 2 -2-[1,3] dioxalan-; and n is 0, 1, or 2; or a pharmaceutically suitable acid addition salt thereof.