Aryl and heteroaryl ethers as agents for the treatment of hypersensitive ailments

Abstract

The present invention is concerned with the therapeutic composition comprising as an active ingredient a compound of the formula: (R.sub.1)(R.sub.2) Ar--Z--M--Ar.sub.1 (R.sub.3)(R.sub.4) I and salts thereof; wherein Ar and Ar.sub.1 are independently phenyl, naphthyl or a nitrogen, oxygen, or sulfur heterocyclic ring; Z is an alkylene chain containing from 1 to 5 carbon atoms in the principal chain and up to a total of 10 carbon atoms; M is oxygen, sulfur, or NR.sub.5 ; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently H, lower alkyl, lower alkoxy, hydroxy, halo, trihalomethyl, hydroxy lower alkyl, carboxy, formyl, aryl, aryloxy, benzyloxy, lower alkanoyl, carboxy lower alkoxy, nitro, amino, lower alkylamino, dilower alkylamino, cyano, lower alkanoyloxy, carbamoyl, lower alkoxy-alkoxy, carbo-lower-alkoxy-alkoxy, or tetrahydropyranylmethyl; and R.sub.5 is hydrogen or lower alkyl.

Dependencies are inferred from the claim text.