Method for the racemization of etodolic acid

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07078533

ABSTRACT:
A method for the resolution of etodolic acid by crystallization of its salt with optically active 1-phenylethylamine and subsequent recovery of the (R,S) etodolic acid from the mother liquors of crystallization by racemization and crystallization is described.

REFERENCES:
patent: 4501899 (1985-02-01), Abraham et al.
patent: 4520203 (1985-05-01), Abraham et al.
patent: 4604469 (1986-08-01), Demerson et al.
patent: 5578734 (1996-11-01), Vecchi
patent: 6964979 (2005-11-01), Gopalsamy et al.
patent: WO 95/27713 (1995-10-01), None
patent: WO 01/06990 (2001-02-01), None
Demerson et al., J Med Chem 1983, 26, 1778-80.
Lee et al., J Pharm Sci 1988, 77, 81-86.
Woods et al., Org Process Res Devel 2000, 4, 418-26.
Costa et al., Synthetic Comm 1996, 26, 3671-76.
Brenna et al., Tetrahedron 1997, 53, 17769-80.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for the racemization of etodolic acid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the racemization of etodolic acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the racemization of etodolic acid will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3544341

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.