Methods for producing nateglinide B-type crystals

Details Methods for producing nateglinide B-type crystals Methods for producing nateglinide B-type crystals

2007-06-04

2009-06-09

Oh, Taylor Victor (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C562S444000, C562S445000

Reexamination Certificate

active

07544834

ABSTRACT:
A method for producing B-type crystals of nateglinide substantially free of H-type crystals is provided, which comprises drying solvated wet crystals of nateglinide at a low temperature until no solvent remains and making a crystal conversion thereof. According to this method, B-type crystals of nateglinide can be produced at an industrial scale without allowing other forms of the crystalline polymorphism to coexist.

REFERENCES:
patent: 5463116 (1995-10-01), Sumikawa et al.
patent: 5488150 (1996-01-01), Sumikawa et al.
patent: 6844008 (2005-01-01), Yabuki et al.
patent: 2003/0021843 (2003-01-01), Makino et al.
patent: 2003/0073729 (2003-04-01), Kitahara et al.
patent: 2004/0014815 (2004-01-01), Ninomiya et al.
patent: 2004/0024219 (2004-02-01), Sumikawa et al.
patent: 2004/0030182 (2004-02-01), Takahashi et al.
patent: 2005/0101672 (2005-05-01), Koguchi et al.
patent: 63-54321 (1988-03-01), None
U.S. Appl. No. 11/757,769, filed Jun. 4, 2007, Sumikawa et al.

Affiliated with

Also associated with

Rating

Methods for producing nateglinide B-type crystals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods for producing nateglinide B-type crystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for producing nateglinide B-type crystals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4120133