Sanofi-synthelabo

Mitsubishi Pharma Corporation

Koichi Yamakoshi

Kazutoshi Watanabe

Masahiro Okuyama

Fumiaki Uehara

Yoshihiro Usui

Aya Shoda

Shinsuke Hiki

Keiichi Aritomo

Mitsuru Ooizumi

A pyrimidone derivative represented by formula (I) or a salt thereof, or a solvate thereof or a hydrate thereof having inhibitory activity against tau protein kinase 1: wherein Rrepresents a C-Calkyl group which may be substituted; R represents, for example, a group represented by the following formula (II): wherein Rand Rindependently represent a hydrogen atom or a C-Calkyl group; Rrepresents a benzene ring which may be substituted, a naphthalene ring which may be substituted, an indan ring which may be substituted, a tetrahydronaphthalene ring which may be substituted, or an optionally substituted heterocyclic ring having 1 to 4 hetero atoms selected from the group consisting of oxygen atom, sulfur atom and nitrogen atom, and having 5 to 10 ring-constituting atoms in total. 

3-substituted-4-pyrimidone derivatives

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Tokyo, Japan

Koichi Yamakoshi