Process for the preparation of 4-androstene-3,17-dione derivativ

Details Process for the preparation of 4-androstene-3,17-dione derivativ Process for the preparation of 4-androstene-3,17-dione derivativ

1976-12-17

1978-07-11

Tanenholtz, Alvin E.

Textiles: fiber preparation

C07B 2900

Patent

active

041000269

ABSTRACT:
A process for the preparation of 4-androstene-3,17-dione derivatives of the formula ##STR1## wherein X is 1,2-methylene or 1- or 2-methyl, comprises fermenting a sterol derivative of the formula ##STR2## wherein X is as above, the bond is a single or double bond, and R.sub.1 is the hydrocarbon residue, of 8-10 carbon atoms, of a sterol, with a microorganism culture capable of the side chain degradation of sterols.

REFERENCES:
patent: 3388042 (1968-06-01), Arima et al
patent: 3684656 (1972-08-01), Waard
patent: 3759791 (1973-09-01), Marsheck et al

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