Title:
PROCESS FOR PRODUCING 2-(BENZO[b]THIOPHEN-5-YL)-2-HYDROXYACETIC ACID DERIVATIVES, OPTICALLY ACTIVE COMPOUNDS THEREOF, OR SALTS OF BOTH
Document Type and Number:
WIPO Patent Application WO/1998/043967
Kind Code:
A1
Abstract:
A new process for producing 2-(benzo[b]thiophen-5-yl)-2-hydroxyacetic acid derivatives used as intermediates for compounds of general formula [1] or optically active compounds thereof, useful as a cerebral function ameliorant.
Inventors:
YAMAMOTO HIROHIKO (JP)
YAMAFUJI TETSUO (JP)
YONEZAWA KENJI (JP)
SAITOH AKIHITO (JP)
TAKAMATSU TAMOTSU (JP)
KOTSUBO HIRONORI (JP)
YAMAFUJI TETSUO (JP)
YONEZAWA KENJI (JP)
SAITOH AKIHITO (JP)
TAKAMATSU TAMOTSU (JP)
KOTSUBO HIRONORI (JP)
Application Number:
PCT/JP1998/001436
Publication Date:
October 08, 1998
Filing Date:
March 30, 1998
Export Citation:
Assignee:
TOYAMA CHEMICAL CO LTD (JP)
YAMAMOTO HIROHIKO (JP)
YAMAFUJI TETSUO (JP)
YONEZAWA KENJI (JP)
SAITOH AKIHITO (JP)
TAKAMATSU TAMOTSU (JP)
KOTSUBO HIRONORI (JP)
YAMAMOTO HIROHIKO (JP)
YAMAFUJI TETSUO (JP)
YONEZAWA KENJI (JP)
SAITOH AKIHITO (JP)
TAKAMATSU TAMOTSU (JP)
KOTSUBO HIRONORI (JP)
International Classes:
C07C319/18; C07C319/20; C07D333/54; C07C323/62; (IPC1-7): C07D333/54; C07C69/738; C07C323/62
Foreign References:
| JPH069615A | 1994-01-18 | |||
| JPH08113580A | 1996-05-07 |
Attorney, Agent or Firm:
Asamura, Kiyoshi (New Ohtemachi Building 2-1, Ohtemachi 2-chom, Chiyoda-ku Tokyo, JP)
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