Patent ID: 6403594
Filing Date: 2002-06-11
Classification: C07D

Abstract:
A compound of the formula whereinR is selected from the group consisting of a phenyl, alkoxycarbonyl, alkylcarbonyl, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, cyano and alkoxycarbonylamino group, R1 is selected from the group consisting of an alkyl, alkoxy, polyfluoroalkoxy, hydroxy and trifluoromethanesulphonyloxy group, each of R2 and R3 is independently selected from the group consisting of hydrogen, halogen, polyfluoroalkyl, polyfluoroalkoxy, cyano, or carbamoyl group, and n is0, 1 or 2, with the proviso that if R represents a phenyl group and both R2 and R3 represent hydrogen and/or halogen atoms, then R1 represents a polyfluoroalkoxy or trifluoromethanesulphonyloxy group, or an N-oxide or pharmaceutically acceptable salt of such a compound.