| abstract |
The present invention relates to compounds of the formula: ##STR1## wherein A represents a grouping of the formula: ##STR2## B represents an oxygen or sulphur atom, R 1 and R 2 , which may be the same or different, each represent a hydrogen or halogen atom, a trifluoromethyl group, or a straight- or branched-chain alkyl or alkoxy group containing from 1 to 4 carbon atoms, R represents a group of the formula --COOR 3 , in which R 3 represents a hydrogen atom or a straight- or branched-chain alkyl group containing from 1 to 12 carbon atoms, or a group of the formula --CH 2 OR 4 , in which R 4 represents a hydrogen atom or an alkylcarbonyl group containing from 2 to 5 carbon atoms and the double bonds depicted in positions C 2 -C 3 , C 5 -C 6 and C 13 -C 14 are trans, cis and trans respectively, the cyclodextrin clathrates thereof and, when R 3 in the group --COOR 3 represents a hydrogen atom, non-toxic salts thereof. These compounds exhibit characteristics of prostaglandin-like activity. |