Names of fundamental structures most often used in steroid nomenclature

Names of fundamental structures most often used in steroid nomenclature

Names of fundamental structures most often used in steroid nomenclature
carbon atoms present (as numbered in structure 6) naturally occurring
classes examples shown in text
gonane 1–17 none gonane* (1)
estrane 1–18 estrogens estradiol (17f)
androstane 1–19 androgens androstane* (2–5); testosterone (17e); androstanedione (17c)
pregnane 1–21 gestogens and adrenal steroids progesterone (17a); cortisol (17b); aldosterone (17d); batrachotoxin (14)
cholane 1–24 bile acids cholic acid (10a); sodium sodium glycocholate (10b)
cholestane 1–27 sterols cholesterol (16d); scymnol (11a)
ergostane 1–28 sterols ergosterol (8); cyasterone (22)
stigmastane 1–29 sterols stigmasterol (7); antheridiol (12)
lanostane 1–27; 30–32 trimethyl sterols lanosterol (16c);
22,25-oxidoholothurinogenin (13)
cardanolide 1–23 cardiac glycosides digitoxigenin (23)
bufanolide 1–24 toad poisons bufotoxin (24)
spirostan 1–27 sapogenins dioscin (25)
*Gonane and androstane themselves do not occur in nature.
See as table:

* * *

Universalium. 2010.

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