| http://www.w3.org/ns/prov#value | - g an atomic length of two or less between the phenylene group and the phenyl group; R' iscarboxyl, an ester thereof or an amide thereof; Y is --O--, --S(O).sub.m -- or --N(R.sup.4)-- wherein m is an integer of 0, 1 or 2 and R.sup.4 is hydrogen or an optionally substituted alkyl group; and n is an integer of 1 or 2; and the pharmaceuticallyacceptable salts thereof.With regard to the foregoing formu
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