the major c-21-17-hydroxysteroids and c19-steroids formed from progesterone by the ovaries of 23-day-old hamsters were 5 alpha-steroids such as 3 alpha , 17-dihydroxy-5 alpha-pregnan-20-one and androsterone , whereas those by the ovaries of 28- and 60-day-old hamsters were 4-ene-3-ketosteroids and 5 beta- and 5 alpha-steroids such as 17-hydroxy-4-pregnene-3,20-dione .
C0022640
ketosteroids
C0038317
steroids