Pregnanes

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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