Process for the preparation of cholanic acids

Details Process for the preparation of cholanic acids Process for the preparation of cholanic acids

2011-07-19

2011-07-19

Badio, Barbara P (Department: 1628)

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

Organic compounds

Cyclopentanohydrophenanthrene ring system containing

C552S549000, C552S551000

Reexamination Certificate

active

07982062

ABSTRACT:
A process for the preparation of high purity cholanic acids, typically in purity equal to or higher than 99%.

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Karlaganis et al., “Determination of bile acids by capillary gas-liquid chromatography-mass spectrometry”. Ital. J. Gastroenterol., vol. 12, pp. 121-123, 1980.
Laatikainen et al., “Determination of serum bile acids by glass capillary gas-liquid chromatography”. Clinica Chimica Acta, vol. 64, pp. 63-68, 1975.
Search Report Issued in the Corresponding European Application No. 07 11 3916 on Apr. 18, 2008.
Hyodeoxycholic Acid webpage downloaded from www.cdyg.com/template/hyodeoxycholic—acid.htm on Nov. 28, 2010, filed herewith as Exhibit A.
Hyodesoxycholic Acid webpage downloaded from www.standard-substance.com/products/Plant-Modifier/Hyod..., on Nov. 28, 2010, filed herewith as Exhibit B.
The webpage “C9377 Chenodeoxycholic acid >95%,” downloaded from www.sigmaaldrich.com/catalog..., on Nov. 29, 2010, 1 page, filed herewith as Exhibit C.
The webpage “D2510 Deoxycholic acid >99% (TLC and titration),” downloaded from www.sigmaaldrich.com/catalog..., Nov. 29, 2010, 2 pages, filed herewith as Exhibit D.
T.F. Gallagher et al., “Partial Oxidation of Hyodesoxycholic Acid,” pp. 365-370, (1946), downloaded from www.jbc.org on Nov. 28, 2010.

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