Zenyaku Kogyo Kabushiki Kaisha

Hideki Satoh

Toshiaki Suzuki

Toshiyuki Matsuno

Kenichi Saitoh

Soichi Ohta

Masayuki Takahashi

Takeshi Nagata

Shinichi Yaguchi

Manami Masuda

Yuriko Watanabe

Ichiro Koshimizu

Yoshie Minowa

Tomoyoshi Kayou

Naoto Tadano

Disclosed are: a novel purine derivative, a composition thereof, a method for treating tumor using the purine derivative, and an antitumor agent using the purine derivative. Specifically disclosed is a compound represented by formula (I), or a pharmaceutically acceptable salt, solvate or hydrate thereof, or a prodrug thereof.

Purine derivative and antitumor agent using same

[Problem] To provide a prophylactic/therapeutic agent against, for example, nerve diseases and the like such as ischemic brain disease and neurodegenerative disease, or a prophylactic/therapeutic agent against diseases against which antioxidant action is effective, as a cell protecting agent, in particular as an inhibitor of brain cell damage or brain cell death. [Means of Solving the Problem] A compound represented by Formula (1), or a pharmaceutically acceptable salt, solvate, hydrate, or prodrug thereof: 

Pyrimidine derivative having cell protecting effect and uses thereof

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Tokyo, Japan

Hideki Satoh