- Pregnanes
Pregnanes are
steroid derivatives with carbons present at positions 1 through 21.Most biologically significant pregnane derivatives fall into one of two groups: Pregnenes and Pregnadienes.
Pregnenes
Pregnenes have a
double bond . Examples include:
*cortisone
*hydrocortisone
*progesterone Pregnadienes
Pregnadienes have two
double bonds . Examples include:
*cyproterone
*danazol
*fluocinonide External links
*
* [http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=439513 PubChem]
* [http://www.chem.qmul.ac.uk/iupac/sectionF/steroid/ster13.html Diagram at qmul.ac.uk]
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