abstract |
Compounds of the formula (I)in whichA represents optionally substituted alkanediyl,R represents in each case optionally substituted cycloalkyl, aryl or benzo-fused heterocyclyl,E represents -CH= or nitrogen,Q represents oxyen, sulphur, -C2-O-, a single bond, or a nitrogen atom which is optionally substituted by alkyl, andX represents halogen. |