複素環化合物及びそれを有効成分とする脳機能改善剤

Title:

複素環化合物及びそれを有効成分とする脳機能改善剤

Document Type and Number:

Japanese Patent JP4285994

Kind Code:

B2

Abstract:

Heterocyclic compound represented by the formula I wherein represents or the like; R1 represents hydrogen atom, C1-C6 alkyl or benzyloxy; R2 represents methyl or nil; R3 represents hydrogen atom, C1-C6 alkyl, C2-C6 alkenyl, C3-C8 cycloalkyl or -CH2R5 Äwherein R5 represents phenyl (which may be substituted with C1-C6 alkyl, halogen atom or cyano)Ü or thienyl; R4 represents C1-C6 alkyl, C2-C6 alkenyl, C3-C8 cycloalkyl or -CH2R6 Äwherein R6 represents phenyl (which may be substituted with C1-C6 alkyl, halogen atom or cyano) , naphtyl or thienylÜ; or R3 is coupled with R4.

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Inventors:

Seiichiro Kawashima
Toshiyuki Matsuno
Naoki Fukuda
Kenichi Saito
Yoshimasa Yamaguchi
Masaya Higashi

Application Number:

JP2002561475A

Publication Date:

June 24, 2009

Filing Date:

January 30, 2002

Export Citation:

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Assignee:

ZENYAKU KOGYO KABUSHIKI KAISHA

International Classes:

C07D233/70; A61K31/4166; A61K31/429; A61K31/437; A61P25/28; C07D471/04; C07D471/10; C07D487/04; C07D487/10; C07D513/04; C07D513/20

Other References:

BERICHTE DER DEUTSCHEN CHEMISCHEN GESELLSCHAFT[ABTEILUNG] B: ABHANDLUNGEN ,1926年,59B,pp.2926-2932
FARMACO,EDIZIONE SCIENTIFICA,1976年,31(3),pp.194-200
HELVETICA CHIMICA ACTA,1986年,69(2),pp.396-403

Attorney, Agent or Firm:

Tsunemitsu Yamada
Seiichi Otsuka

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