Patent ID: 7241761

Claim:
A compound of formula I wherein R 1 is the group R 2 is morpholino, OR′ or N(R″) 2 ; R′ is lower alkyl, lower alkyl substituted by halogen, or —(CH 2 ) n -cycloalkyl; R″ is lower alkyl; R 3 is NO 2 , CN or SO 2 R′; R 4 is hydrogen, hydroxy, halogen, NO 2 , lower alkyl, lower alkyl substituted by halogen, lower alkoxy, SO 2 R′ or C(O)OR″; R 5 , R 6 , and R 7 are each independently hydrogen, halogen, lower alkyl or lower alkyl substituted by halogen; X 1 is N; X 2 is O or S; and n is 0, 1 or 2; or a pharmaceutically acceptable acid addition salt thereof.