Title:
NOVEL CRYSTAL OF PIPERACILLIN SODIUM MONOHYDRATE
Document Type and Number:
WIPO Patent Application WO/2011/040386
Kind Code:
A1
Abstract:
Disclosed is a novel crystal of piperacillin sodium monohydrate, which has diffraction angles represented by 2θ of 6.6, 10.9, 14.6, 17.0, 18.2, 19.8 and 24.9° in powder X-ray diffraction. The crystal has a low analogous substance content, high purity, and low hygroscopicity, and is useful as an active ingredient for a drug or an intermediate for the production of an active ingredient for a drug.
Inventors:
MOURI MASARU (JP)
OONISHI YUJI (JP)
ISHIHARA KENTARO (JP)
OONISHI YUJI (JP)
ISHIHARA KENTARO (JP)
Application Number:
PCT/JP2010/066766
Publication Date:
April 07, 2011
Filing Date:
September 28, 2010
Export Citation:
Assignee:
TOYAMA CHEMICAL CO LTD (JP)
MOURI MASARU (JP)
OONISHI YUJI (JP)
ISHIHARA KENTARO (JP)
MOURI MASARU (JP)
OONISHI YUJI (JP)
ISHIHARA KENTARO (JP)
International Classes:
C07D499/68; A61K31/496; A61P31/04
Domestic Patent References:
| WO2008093650A1 | 2008-08-07 |
Foreign References:
| JP2007246514A | 2007-09-27 | |||
| JP2007099763A | 2007-04-19 | |||
| US20030028016A1 | 2003-02-06 |
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