| abstract |
There are provided compound of formula (I) nwherein nR 1 represents C 1-6 alkyl or C 1-6 haloalkyl; nR 2 represents C 3-8 cycloalkyl or C 3-8 cycloalkenyl either of which may optionally be substituted by one or more groups selected from oxo, methyl, methylene and halogen; nR 3 represents hydrogen, methyl (which may be in either the ± or ² configuration) or methylene; nR 4 and R 5 are the same or different and each represents hydrogen or halogen; and ----- represents a single or a double bond; nand solvates thereof, processes for preparing them and their use in therapy. |