Phenylalkan(en)oic acid

A phenylkan(en)oic acid of the formula:

• ##STR191## wherein A is:
• --O--;
• W is:
• i) C.sub.1-13 alkylene,
• ii) phenylene, or ##STR192## R.sup.1 is:
• i) hydrogen,
• ii) C.sub.1-4 alkyl,
• iii) --COOH,
• iv) ##STR193## or v) --CH.sub.2 OH;
• two R.sup.2 are the same or different,
• i) hydrogen or
• ii) C.sub.1-4 alkyl;
• Y is ethylene or vinylene;
• D is:
• i) --Z--B, or ##STR194## Z is C.sub.3-11 alkylene or alkenylene;
• B is ##STR195## R.sup.3 is:
• i) hydrogen,
• ii) halogen,
• iii) C.sub.1-8 alkyl, alkoxy or alkylthio, or
• iv) C.sub.2-8 alkenyl, alkenyloxy or alkenylthio;
• n is 1-3;
• R.sup.4 is C.sub.1-7 alkylene;
• R.sup.5 is:
• i) C.sub.1-12 alkyl,
• ii) C.sub.2-12 alkenyl,
• iii) C.sub.5-7 cycloalkyl, or
• iv) phenethyl or phenethyl wherein the ring is substituted by one C.sub.1-4 alkoxy;
• with the proviso that:
• i) --A--W--R.sup.1 should bind to the 3- or 4-carbon in the benzene ring, and
• ii) when W is phenylene or ##STR196## A does not represent --O--;
• and non-toxic salts thereof.