| abstract |
Disclosed are compounds of formula (I) n n n n n n n n n n wherein R 1 is C 1-6 alkyl, halo or haloC 1-6 alkyl; R 2 is hydrogen or C 1-6 alkyl; is a single or double bond; each R 3 and R 4 , which may be the same or different, are hydrogen, C 1-6 alkyl or haloC 1-6 alkyl; wherein i) when is a double bond p and q are 1, and ii) when is a single bond, p and q are 2, and one of R 3 and one of R 4 , together with their interconnecting atoms, forms a cyclopropane ring which may be substituted by one or two halo or methyl groups, which groups may be the same or different; X is CH or N; when present each R 5 , which may be the same or different, is C 1-6 alkyl or halo; or two R 5 groups may join to form a bridge, which bridge contains one or two atoms; n is 0, 1, 2 or 3; when present each R 6 which may be the same or different, is C 1-6 alkyl or halo; and m is 0, 1, 2 or 3. |