Taisho Pharmaceutical Co., Ltd.

Takeshi Koami

Tetsuya Yabuuchi

Tetsuo Takayama

Naoya Ono

Yoshinori Sekiguchi

Hajime Asanuma

Fumiyasu Shiozawa

Hironori Katakai

Rie Nishikawa

Hiroshi Ohta

Masakazu Sato

Tsuyoshi Shibata

Masato Hayashi

Shuji Yamamoto

Taketoshi Okubo

Dai Nozawa

Tomomi Ota

Takahiro Oi

Hideaki Amada

Shoichi Kuroda

Yusuke Oka

Takeshi Kuwada

Fumito Uneuchi

Madoka Kawamura

Daisuke Wakasugi

Yuri Amada

Yuko Matsunaga

Hiroki Umemiya

Akiko Ikeda

A compound represented by formula (I) or a pharmaceutically acceptable salt thereof has an effect of inhibiting CRTH2 and, therefore, is useful as a preventive or a remedy for allergic diseases such as asthma, atopic dermatitis and allergic rhinitis.

Isoquinoline derivative

It is intended to provide a drug which is efficacious against pathological conditions relating to arginine-vasopressin V1b receptor. More particularly speaking, it is intended to provide a drug which has a therapeutic or preventive effect on depression, anxiety, Alzheimer's disease, Parkinson's disease, Huntington's chorea, eating disorders, hypertension, digestive diseases, drug addiction, epilepsy, brain infarction, brain ischemia, brain edema, head injury, inflammation, immune diseases, alopecia and so on. As the results of intensive studies, a novel 1,3-dihydro-2H-indol-2-one compound and a pyrrolidin-2-one compound fused with a heteroaromatic ring, which are highly selective antagonists of arginine-vasopressin V1b receptor, have high metabolic stabilities and show favorable brain penetration and high plasma concentrations, are found, thereby achieving the above objective.

1,3-dihydro-2H-indole-2-one compound and pyrrolidine-2-one compound fused with aromatic heterocycle

The present invention aims to provide compounds which have an inhibitory effect on the binding between S1P and its receptor Edg-1(S1P) and which are useful for pharmaceutical purposes. A compound represented by formula (I) or a pharmaceutically acceptable salt thereof: [wherein Ar represents a monocyclic heterocyclic ring containing one or two nitrogen atoms, A represents an oxygen atom or the like, Y, Yand Yeach represent a carbon atom or a nitrogen atom, Rrepresents a hydrogen atom, a C-Calkyl group or the like, Rrepresents a C-Calkyl group, a C-Ccycloalkyl group or the like, Rrepresents a C-Calkyl group or the like, Rrepresents a hydrogen atom or a C-Calkyl group, and Rrepresents a C-Calkyl group or the like].

Binding inhibitor of sphingosine-1-phosphate

A thiazolylimidazole derivative represented by the formula or a pharmaceutically acceptable salt thereof, and an ALK5 inhibitor, an therapeutic agent for alopecia or a hair growth agent having the above as an active ingredient,wherein:  The present invention provides an inhibitory substance against ALK5 which is a TGF-&#x3b2; type I receptor and provides a hair growth stimulant or a hair growth agent based on its novel activities.

Thiazole derivative

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Tokyo, Japan

Takeshi Koami