the major c21-17-oh-steroids and c19-steroids formed from progesterone by both tumors and the testes of immature mice were 5 alpha-steroids , such as 3 alpha,17-dihydroxy-5 alpha-pregnan-20-one , 5 alpha-androstane-3,17-dione , androsterone , 3 beta-hydroxy-5 alpha-androstan-17-one and 5 alpha-androstane-3 alpha,17 beta-diol .
C0033006
c21
C0038317
steroids