IP Library Granted Patent US 7,951,963
Granted Patent B2
US 7,951,963 · App. 11/909,809 · Granted May 31, 2011

Process for production of 1-(3-(2-(1-benzothiophen-5-yl)-ethoxy)propyl)azetidin-3-ol or salts thereof

Assignee: Toyama Chemical Co., Ltd.
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Quick Facts
Patent No.
US 7,951,963
App. No.
11/909,809
Granted
May 31, 2011
Kind
B2
Abstract

A Process for production of 1-(3-(2-(1-benzothiophen-5-yl)ethoxy)propyl)azetidin-3-ol or salts thereof which comprises using as a starting compound as a (phenylthio)acetic acid derivative or salts thereof represented by the general formula: wherein X 1 represents a halogen atom, is useful as a safe process for mass production of 1-(3-(2-(1-benzothiophen-5-yl)ethoxy)propyl)azetidin-3-ol or salts thereof which is useful as a remedy for disease of central and peripheral nerve.

Claims (22)

1. A propionic acid ester compound represented by formula (I):

wherein R 1 represents a hydrogen atom or alkyl, cycloalkyl, or aryl group, which are each unsubstituted or substituted with at least one substituent selected from the group consisting of a halogen atom, a hydroxyl group, a nitro group, an alkyl group, a cycloalkyl group, an alkoxy group, an alkenyl group, and an aryl group.

2. The propionic acid ester compound of claim 1 , wherein R 1 is an alkyl group.

3. The propionic acid ester compound of claim 1 , wherein R 1 is a cycloalkyl group.

4. The propionic acid ester compound of claim 1 , wherein R 1 is an aryl group.

5. The propionic acid ester compound of claim 2 , wherein the alkyl group is substituted with a halogen.

6. The propionic acid ester compound of claim 3 , wherein the cycloalkyl group is substituted with a halogen.

7. The propionic acid ester compound of claim 4 , wherein the aryl group is substituted with a halogen.

8. The propionic acid ester compound of claim 2 , wherein the alkyl group is substituted with an alkenyl group.

9. The propionic acid ester compound of claim 3 , wherein the cycloalkyl group is substituted with an alkenyl group.

10. The propionic acid ester compound of claim 4 , wherein the aryl group is substituted with an alkenyl group.

11. The propionic acid ester compound of claim 2 , wherein the alkyl group is substituted with an alkoxy group.

12. The propionic acid ester compound of claim 3 , wherein the cycloalkyl group is substituted with an alkoxy group.

13. The propionic acid ester compound of claim 4 , wherein the aryl group is substituted with an alkoxy group.

14. The propionic acid ester compound of claim 2 , wherein the alkyl group is substituted with an alkyl group.

15. The propionic acid ester compound of claim 3 , wherein the cycloalkyl group is substituted with an alkyl group.

16. The propionic acid ester compound of claim 4 , wherein the aryl group is substituted with an alkyl group.

17. The propionic acid ester compound of claim 2 , wherein the alkyl group is substituted with an aryl group.

18. The propionic acid ester compound of claim 3 , wherein the cycloalkyl group is substituted with an aryl group.

19. The propionic acid ester compound of claim 4 , wherein the aryl group is substituted with an aryl group.

20. The propionic acid ester compound of claim 1 , having structure (II):

21. The propionic acid ester compound of claim 1 , having structure (III):

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2007
From: SAITOH, AKIHITO; SUZUKI, YOSHIAKI; YONEZAWA, KENJI; KAWAMURA, MITSUHIDE; KUSANAGI, TAKAHIKO; NAKAI, TAKASHI
To: TOYAMA CHEMICAL CO., LTD.
Reel/Frame 019887/0815 →
Priority Claims (4)
JP 2005-090831 · Mar 28, 2005 · national
JP 2005-174738 · Jun 15, 2005 · national
JP 2005-206808 · Jul 15, 2005 · national
JP 2005-230666 · Aug 9, 2005 · national
Continuity (1)
Related Publication 20090069576A1 · Mar 12, 2009