Abstract: Phenylcarboxylic acid derivatives having a hetero ring in the substituent of the formula: ##STR1## wherein R.sup.1 is halogen, alkyl, cycloalkyl, hydroxy, alkoxy, phenoxy which has a substituent selected from halogen and alkyl, carboxyl, alkylsulfonyloxy, phenylsulfonyloxy optionally substituted by halogen, alkylsulfonyloxyalkoxy, amino, alkanoylamino, benzoylamino, alkenyloxy, phenylalkoxyalkoxy, hydroxyalkoxy, phenylalkoxy having optionally 1 to 3 substituents selected from halogen, alkyl and alkoxy, halogenoalkyl, cycloalkyloxy optionally substituted by hydroxy, alkoxy substituted by cycloalkyl having optionally hydroxy substituent, imidazolylalkyl or imidazolylalkoxy; k is 0 or 1 to 3; or (R.sup.1).sub.k is alkylenedioxy; A is alkylene or alkylenoxy; l is 0 or 1; B is methylene or carbonyl; m is 0 or 1; D is alkylene; E is alkylene or alkenylene; n is 0 or 1; and R.sup.