in plasma only 5.6 % of the infused steroid was recovered as unconverted progesterone and the major amount was metabolized to polar compounds with smaller amounts of 5 alpha-pregnane-3,20-dione , 5 alpha-pregnan-3 beta-ol-20-one and 20 alpha hydroxypregn-4-en-3-one .
C0038317
steroid
C0033006
pregnane