Biliary acid derivatives, processes for the preparation thereof

Details Biliary acid derivatives, processes for the preparation thereof Biliary acid derivatives, processes for the preparation thereof

1988-10-19

1990-05-01

Lipovsky, Joseph A.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Cyclopentanohydrophenanthrene ring system doai

552549, 552550, 552551, A61K 3156, C07J 100

Patent

active

049218484

ABSTRACT:
Compounds of formula I ##STR1## wherein: R.sub.1 is hydrogen or hydroxy, and the methyl and hydroxy groups at 6- and 7-positions respectively can be either in .alpha. or .beta. configuration, are useful in human therapy. Compounds I are prepared by methylation of the corresponding appropriately protected 7-keto-derivatives.

REFERENCES:
patent: 2615902 (1950-10-01), Hirschmann et al.
patent: 2938031 (1960-04-01), Bible et al.
patent: 2966499 (1960-12-01), Hinkley et al.
patent: 3591687 (1971-07-01), Bray
patent: 4172076 (1979-10-01), Hirsch et al.

Affiliated with

Also associated with

Rating

Biliary acid derivatives, processes for the preparation thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Biliary acid derivatives, processes for the preparation thereof , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biliary acid derivatives, processes for the preparation thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-829743