15,16 -Methylene-17.alpha.-pregna-4,6-diene-21-carboxylic acid s

Details 15,16 -Methylene-17.alpha.-pregna-4,6-diene-21-carboxylic acid s 15,16 -Methylene-17.alpha.-pregna-4,6-diene-21-carboxylic acid s

1984-07-13

1985-09-17

Roberts, Elbert L.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Cyclopentanohydrophenanthrene ring system doai

2603971, 26023957, C07J 900, A61K 3156

Patent

active

045420246

ABSTRACT:
New 15,16-methylene-17.alpha.-pregna-4,6-diene-21-carboxylic acid salts of formula I ##STR1## wherein R.sup.1 and R.sup.2 each alone is hydrogen or together they form an additional CC bond or a methylene group,

REFERENCES:
patent: 4150127 (1979-04-01), Anner et al.
patent: 4291029 (1981-09-01), Wiechert et al.
patent: 4450107 (1984-05-01), Nickisch et al.
European Search Report.

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