Yoshitomi Pharmaceutical Industries, Ltd.

Mitsuhiro Konishi

Tsutomu Yamanaka

Toshihiro Kobayakawa

Kuniki Ikeda

Michio Terasawa

Minoru Kawakami

Toshio Hamasaki

A styryl compound of the formula(I): ##STR1## wherein each symbol is as defined in the specification, a pharmaceutically acceptable salt or an ester thereof is disclosed. Since the compounds of the present invention possess potent and long-lasting leukotriene-antagonistic actions and inhibitory actions against leukotriene, and exhibit better absorption by the oral administration. Further, the compounds of the present invention possess 5-lipoxygenase-inhibitory actions and/or cyclooxygenase-inhibitory actions, inhibitory actions to biosynthesis of LTB4, chemotactic actions against human leucoccyte, chymase-inhibitory actions, inhibitory actions to release of histamine or antihistamine actions. Therefore, they are useful as the prophylactic and therapeutic medicines for brochial asthma, chronic bronchitis, atopic dermatitis, allergic rhinitis, allergic arthritis, allergic conjunctivitis, hay fever, urticaria, alimentary allergy, pain, pyretolysis, rheumatoid, thrombosis, coronary vascular diseases, ischemic heart disease, peptic or duodenal ulcer and the like.

Styryl phridyl compounds and their pharmaceutical compositions

2,5-Di-substituted 4-oxazolealkanoic acids and esters thereof of the formula: ##STR1## WHEREIN M REPRESENTS AN INTEGER OF 1 TO 2; R.sup.1 represents an alkyl group having 1 to 4 carbon atoms; n represents an integer of 1 to 2; R represents a mono- or di-substituted phenyl group (in which the substituents are selected from the group consisting of a halogen atom, a methyl group, a methoxy group, a nitro group, a trifluoromethyl group, a phenyl group, a halogen-substituted phenyl group, a phenoxy group and a halogen-substituted phenoxy group), a pyridyl group, a halogen-substituted pyridyl group, a furyl group, a halogen-substituted furyl group, a thienyl group, a halogen-substituted thienyl group, a naphthyl group or a halogen-substituted naphthyl group; when m represents an integer of 1, Y represents an hydrogen atom, an alkyl group having 1 to 2 carbon atoms, a benzyl group or a pyridylmethyl group; and when m represents an integer of 2, Y represents a trimethylene group. These compounds are useful as drugs for the treatment of arteriosclerosis, thrombosis and hypertension with lipid metabolism disorder.

2,5-Di-substituted 4-oxazolealkanoic acids and esters

2,5-Di-substituted 4-oxazolealkanoic acid and esters

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Oita, Japan

Mitsuhiro Konishi