20alpha-hydroxypregn-4-ene-3-one ( 20alpha-dhp ) in ovarian tissue could be formed directly from progesterone ( pathway 1 ) or from pregnenolone via a delta 5-intermediate , pregn-5-ene-3beta , 20alpha-diol ( pathway 2 ) .
C0012311
20alpha-hydroxypregn-4-ene-3-one
C0033308
progesterone