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Details for Patent: 5,488,150

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Summary for Patent: 5,488,150

Title: Crystals of N-(trans-4-isopropylcyclohexycarbonyl)-D-phenylalanine and methods for preparing them
Abstract:Stable crystals of N-(trans-4-isopropylcyclohexylcarbonyl)-D-phenylalanine may be produced by treating this compound with a solvent at a temperature of at least 10.degree. C. and forming crystals in the solvent at a temperature of at least 10.degree. C. For example, crystals may be formed by crystallization out of solution, or may be formed from solid particles of the compound suspended in a solvent. Crystals formed in this way have different melting point, infra red spectrum and X-ray diffraction patterns from previously known forms of the compound and have enhanced processability, eg. stability to grinding.
Inventor(s): Sumikawa; Michito (Kawasaki, JP), Koguchi; Yoshihito (Kawasaki, JP), Ohgane; Takao (Kawasaki, JP), Irie; Yasuo (Kawasaki, JP), Takahashi; Satoji (Yottukaichi, JP)
Assignee: Ajinomoto Co., Inc. (Tokyo, JP)
Application Number:08/166,144
Patent Claim Types:
see list of patent claims
Use; Formulation; Composition;
Patent PDF download available with subscription

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Foreign Priority and PCT Information for Patent: 5,488,150

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan3-189696Jul 30, 1991
Japan3-199453Aug 08, 1991

International Patent Family for Patent: 5,488,150

Country Document Number Publication Date Supplementary Protection Certificate SPC Country SPC Expiration
Spain2100291Jun 16, 1997
Canada2114678Apr 27, 1999
Austria149483Mar 15, 1997
Germany10199058Jan 24, 2002
Netherlands300063Dec 01, 2001
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ISSN: 2162-2639

Preferred citation:

Friedman, Y. Location of pharmaceutical innovation: 2000–2009 Nature Reviews Drug Discovery 9, 835–836 (2010).

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