Teijin Pharma Limited

Teijin Limited

Chikashi Kanazawa

Asahi Kawana

Yoshimasa Takahashi

Takashi Shirakura

Akira Tanokura

Hiroyuki Takahashi

Hisae Nozato

Masayuki Tera

Mariko Imazeki

Provided are a xanthine oxidase inhibitor, a drug for improving vascular endothelial function, and an excellent therapeutic or prophylactic drug for diseases associated with xanthine oxidase such as gout, hyperuricaemia, and for diseases associated with vascular endothelial functional disorder containing a compound represented in a formula (I) or the pharmaceutically acceptable salt thereof as an active ingredient.

Xanthine oxidase inhibitor

There are provided: 4-methyl-2-[4-(2-methylpropoxy)-3-(1H-1,2,3,4-tetrazol-1-yl)phenyl]-1,3-thiazole-5-carboxylic acid, a sodium salt thereof and crystals of these, useful as a therapeutic agent and a prophylactic agent for gout, hyperuricemia and the like, and a method for producing the same.

Azole benzene derivative and crystalline form thereof

Provided are a compound expressed by formula (I) or a pharmacologically permissible salt thereof, as well as a drug or drug composition that contains this compound as an active ingredient, having a xanthine oxidase inhibiting effect that is very useful for treating or preventing diseases that are contributed to by xanthine oxidase, such as gout, hyperuricemia, tumor lysis syndrome, urinary tract stones, hypertension, dyslipidemia, diabetes, cardiovascular disease such as heart failure and arterial sclerosis, renal disease such as diabetic near opacity and the like, respiratory disease such as chronic obstructive pulmonary disease and the like, autoimmune diseases such as inflammatory bowel disease, and the like. [In the formula, A, X, Y, Z, R, and Rhave the meaning set forth in claim]. 

Pyrazole derivative

The present invention provides: a compound represented by formula (I) or a pharmaceutically acceptable salt thereof, which has an excellent inhibitory activity on xanthine oxidase and is useful as a therapeutic agent or a prophylactic agent for diseases associated with xanthine oxidase, such as gout, hyperuricemia, tumor lysis syndrome, urinary tract stone, hypertension, dyslipidemia, diabetes, cardiovascular diseases including arteriosclerosis and heart failure, renal diseases including diabetic nephropathy, respiratory diseases including chronic obstructive pulmonary disease, inflammatory bowel disease or autoimmune diseases; and a medicine or a pharmaceutical composition comprising the compound or the salt as an active ingredient. 

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Tokyo, Japan

Chikashi Kanazawa