trace amounts of labelled pregnenolone were added to the slices of veriliscent tumor from human adrenal gland in order to study the stepwise conversion of the steroid into androstenedione , 11betaoh-androstenedione and their intermediats -- 17-alpha-oh pregnenolone , dehydroepiandrosterone , progesterone , and 17-alpha-oh-progesterone .
C0373704
pregnenolone
C0376260
17