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5973172 |
14-α,17-α-C2 -bridged norprogesterone derivatives
The invention describes 14,17-C2 -bridged steroids of general formula (I), ##STR1## wherein the various R groups are as defined in the specification, and wherein said steroids are in contrast, with...
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5874598 |
Process for producing 1,2,3-trioxysteroid derivatives
A process for the production of a compound of formula (II), which comprises reacting an epoxy compound of formula (I) with an alcohol, wherein the reaction is carried out under a basic condition....
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5428151 |
Medrogestrone production
A process for the production of medrogestone, in which, in an intermediate step, the solvate 3β,5α,6β-trihydroxy-6α,17α-dimethylpregnan-20- one monomethanolate is obtained as a solid, stable comp...
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4587235 |
Novel androstane derivatives, process for their production, and pharmaceutical preparations containing them
Androstane derivatives of Formula I ##STR1## wherein is a single bond or a double bond, R1 is methyl or ethyl, R2 is hydrogen or alkyl of 1-8 carbon atoms, --X-- is --(CH2)n --, --CHCH(CH2)m --, o...
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3491090 |
CYCLOBUTANO- AND CYCLOBUTENO - (3',4':6,7) DERIVATIVES OF THE CORTICOID SERIES
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3071578 |
Androstane-16, 17-dicarboxylic acid imides
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2844601 |
3-oxygenated bisnor-17(20)-cholen-22-ols
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2813106 |
3,21-disubstituted-5,7,9 (11)-pregnatrien-20-ones
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