| 摘要 |
There are provided compound of formula (I)
wherein
R 1 represents C 1-6 alkyl or C 1-6 haloalkyl;
R 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;
R 3 represents hydrogen, methyl (which may be in either the � or � configuration) or methylene;
R 4 and R 5 are the same or different and each represents hydrogen or halogen; and ----- represents a single or a double bond;
and solvates thereof, processes for preparing them and their use in therapy. |
