Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Cyclopentanohydrophenanthrene ring system doai
Patent
1994-02-15
1996-03-19
Kestler, Kimberly J.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Cyclopentanohydrophenanthrene ring system doai
552554, A61K 31575, C07J 900
Patent
active
055004210
ABSTRACT:
The invention discloses N-alkyl-tauroursodeoxycholic acids and their pharmaceutically acceptable salts of the formula ##STR1## wherein R is a C.sub.2 -C.sub.4 alkyl group and R.sub.1 is hydrogen, an alkali metal, an alkaline earth metal or a radical of a basic amino acid.
The compounds are prepared by reacting a mixed anhydride of ursodeoxycholic acid and alkyltaurine followed by percolation through two columns respectively containing a strong cationic resin in H.sup.+ form and a weakly anionic resin OH.sup.- form. The compounds are useful for the treatment of hepatic diseases.
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Schmassmann et al "Prevention of Ursodeoxycholate . . . " Hepatology, vol. 11, No. 6, 1990, pp. 989-996.
Batta et al "Substrate Specificity of Cholylglycine . . . " Journal of Biological Chemistry, vol. 259, No. 24, 1984, pp. 15035-15039.
Kestler Kimberly J.
Prodotti Chimici Alimentari SPA
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