Process for preparing 3.beta.7.beta.-dihydroxy-.DELTA..sup.5 -st

Details Process for preparing 3.beta.7.beta.-dihydroxy-.DELTA..sup.5 -st Process for preparing 3.beta.7.beta.-dihydroxy-.DELTA..sup.5 -st

1983-09-26

1986-09-30

Roberts, Elbert L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

2603974, 540 41, 540 44, C07J 100

Patent

active

046146164

ABSTRACT:
A process for preparing a 3.beta.,7.beta.-dihydroxy-.DELTA..sup.5 -steroid of the formula ##STR1## wherein Q is ##STR2## and R.sub.1 is hydrogen, trimethylacetyl, tert-butyldimethylsilyl, dimethyl-2-(3-methylbutyl)silyl or tribenzylsilyl, comprises fermenting a 3.beta.-hydroxy-.DELTA..sup.5 -steroid of the formula ##STR3## wherein Q is as defined above, and

REFERENCES:
patent: 4267117 (1981-05-01), Salmond
patent: 4292251 (1981-09-01), Overbeek
patent: 4435327 (1984-03-01), Petzold et al.
patent: 4470981 (1984-09-01), Hesse

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