Title:
4-[5-(PYRIDINE-4-YL)-1H-1,2,4-TRIAZOLE-3-YL]PYRIDINE-2-CARBONITRILE CRYSTALLINE POLYMORPH AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2014/017515
Kind Code:
A1
Abstract:
Provided are a 4-[5-(pyridine-4-yl)-1H-1,2,4-triazole-3-yl]pyridine-2-carbonitrile crystalline polymorph, which is useful as a pharmaceutical product, and a production method therefor. The present invention relates to a 4-[5-(pyridine-4-yl)-1H-1,2,4-triazole-3-yl]pyridine-2-carbonitrile crystalline polymorph, and three different crystalline forms are obtained by purification via a salt, storage under humidified conditions or recrystallization.
Inventors:
IWABUCHI YOSHIYUKI (JP)
MIYATA SACHIHO (JP)
SATO TAKAHIRO (JP)
UDA JUNICHIRO (JP)
KANDOU TAKAMITSU (JP)
INOUE TADASHI (JP)
NAKANO HIROYUKI (JP)
MIYATA SACHIHO (JP)
SATO TAKAHIRO (JP)
UDA JUNICHIRO (JP)
KANDOU TAKAMITSU (JP)
INOUE TADASHI (JP)
NAKANO HIROYUKI (JP)
Application Number:
PCT/JP2013/070004
Publication Date:
January 30, 2014
Filing Date:
July 24, 2013
Export Citation:
Assignee:
FUJIYAKUHIN CO LTD (JP)
International Classes:
C07D401/14; A61K31/444; A61P19/06; A61P43/00
Domestic Patent References:
| WO2003064410A1 | 2003-08-07 | |||
| WO2005009991A1 | 2005-02-03 | |||
| WO2003064410A1 | 2003-08-07 | |||
| WO2005009991A1 | 2005-02-03 |
Foreign References:
| JP2005041802A | 2005-02-17 | |||
| JP2003519698A | 2003-06-24 | |||
| JP2005041802A | 2005-02-17 |
Other References:
See also references of EP 2878598A4
Attorney, Agent or Firm:
THE PATENT CORPORATE BODY ARUGA PATENT OFFICE (JP)
Patent business corporation Alga patent firm (JP)
Patent business corporation Alga patent firm (JP)
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