Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1976-07-01
1977-11-08
Roberts, Elbert L.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
2603971, 2603975, C07J 7100, C07J 100
Patent
active
040575438
ABSTRACT:
A new process utilizing certain novel intermediates for the preparation of 17.beta.-hydroxy-3-oxo-17.alpha.-pregn-4-ene-21-carboxylic acid .gamma.-lactone is described herein. The procedure utilizes readily available and inexpensive sarsasaponin as starting material.
REFERENCES:
jour. Med. Chem. (1963), article by Crabbe et al., pp. 182-184.
Dryden, Jr. Hugh L.
Markos Charles S.
G. D. Searle & Co.
Kolano John J.
Roberts Elbert L.
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