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Title:
METHOD FOR PURIFYING TAFLUPROST
Document Type and Number:
WIPO Patent Application WO/2022/162967
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method for purifying tafluprost that is easy and efficient and that can also be scaled up. The present invention relates to a method for purifying tafluprost, the method including a step for purifying a tafluprost crude product by silica gel column chromatography and collecting a tafluprost-containing fraction by HPLC analysis. The present invention also relates to a method for producing tafluprost that includes the method for purifying tafluprost.

Inventors:
KONISHI KATSUHIKO (JP)
MORI NOBUAKI (JP)
MATSUMURA YASUSHI (JP)
Application Number:
PCT/JP2021/018791
Publication Date:
August 04, 2022
Filing Date:
May 18, 2021
Export Citation:
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Assignee:
AGC INC (JP)
International Classes:
C07C405/00
Domestic Patent References:
WO2013118058A12013-08-15
WO2016090461A12016-06-16
Foreign References:
US20140051882A12014-02-20
CN108299192A2018-07-20
JP2017513816A2017-06-01
JPH1171344A1999-03-16
CN112209863A2021-01-12
EP2208724A12010-07-21
EP0850926A21998-07-01
US20140051882A12014-02-20
CN108299192A2018-07-20
JP2015036382A2015-02-23
US20140046086A12014-02-13
US202110111991A
Other References:
TETRAHEDRON LETT, vol. 45, 2004, pages 1527 - 1529
"Basic Operation", vol. I, 5 November 1990, MARUZEN, article "5-2-3 Column Chromatography", pages: 293 - 296
J. ORG. CHEM., vol. 81, 2016, pages 10832 - 844
MOLECULES, vol. 22, no. 217, 2017, pages 1 - 16
ORG. LETT., vol. 22, 2020, pages 2991 - 2994
Attorney, Agent or Firm:
TAKASHIMA, Hajime (JP)
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